Finding the Fourth Proportional to 607,142,451.54, 911,076,385.18 and 557,745,895.10

Step by Step Solution

1. Step 1: Write the proportion equation
   607,142,451.54 : 911,076,385.18 = 557,745,895.10 : x
2. Step 2: Convert to fraction form
   607,142,451.54/911,076,385.18 = 557,745,895.10/x
3. Step 3: Cross multiply
   607,142,451.54x = 911,076,385.18 × 557,745,895.10
4. Step 4: Simplify right side
   607,142,451.54x = 508,149,113,956,691,456
5. Step 5: Solve for x
   x = 508,149,113,956,691,456/607,142,451.54
6. Step 6: Final answer
   x = 836,952,040.94