Finding the Fourth Proportional to 12,786,361,742,822, 19,180,670,128,314 and 3,607,499,873,112.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,786,361,742,822 : 19,180,670,128,314 = 3,607,499,873,112.70 : x
2. Step 2: Convert to fraction form
   12,786,361,742,822/19,180,670,128,314 = 3,607,499,873,112.70/x
3. Step 3: Cross multiply
   12,786,361,742,822x = 19,180,670,128,314 × 3,607,499,873,112.70
4. Step 4: Simplify right side
   12,786,361,742,822x = 69,194,265,054,109,314,926,510,080
5. Step 5: Solve for x
   x = 69,194,265,054,109,314,926,510,080/12,786,361,742,822
6. Step 6: Final answer
   x = 5,411,567,922,591.71