Finding the Fourth Proportional to 124,518,491.55, 186,850,520.69 and 89,940,796.83

Step by Step Solution

1. Step 1: Write the proportion equation
   124,518,491.55 : 186,850,520.69 = 89,940,796.83 : x
2. Step 2: Convert to fraction form
   124,518,491.55/186,850,520.69 = 89,940,796.83/x
3. Step 3: Cross multiply
   124,518,491.55x = 186,850,520.69 × 89,940,796.83
4. Step 4: Simplify right side
   124,518,491.55x = 16,805,484,718,509,298
5. Step 5: Solve for x
   x = 16,805,484,718,509,298/124,518,491.55
6. Step 6: Final answer
   x = 134,963,767.30