Finding the Fourth Proportional to 12,786,361,742,861, 19,180,670,128,368 and 3,607,499,873,150.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,786,361,742,861 : 19,180,670,128,368 = 3,607,499,873,150.70 : x
2. Step 2: Convert to fraction form
   12,786,361,742,861/19,180,670,128,368 = 3,607,499,873,150.70/x
3. Step 3: Cross multiply
   12,786,361,742,861x = 19,180,670,128,368 × 3,607,499,873,150.70
4. Step 4: Simplify right side
   12,786,361,742,861x = 69,194,265,055,032,982,003,253,248
5. Step 5: Solve for x
   x = 69,194,265,055,032,982,003,253,248/12,786,361,742,861
6. Step 6: Final answer
   x = 5,411,567,922,647.44