Finding the Fourth Proportional to 7,761,399.86, 11,642,819.34 and 2,642,109.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,761,399.86 : 11,642,819.34 = 2,642,109.82 : x
2. Step 2: Convert to fraction form
   7,761,399.86/11,642,819.34 = 2,642,109.82/x
3. Step 3: Cross multiply
   7,761,399.86x = 11,642,819.34 × 2,642,109.82
4. Step 4: Simplify right side
   7,761,399.86x = 30,761,607,310,699.92
5. Step 5: Solve for x
   x = 30,761,607,310,699.92/7,761,399.86
6. Step 6: Final answer
   x = 3,963,409.68