Finding the Fourth Proportional to 561,468.42, 842,112.18 and 156,671.10

Step by Step Solution

1. Step 1: Write the proportion equation
   561,468.42 : 842,112.18 = 156,671.10 : x
2. Step 2: Convert to fraction form
   561,468.42/842,112.18 = 156,671.10/x
3. Step 3: Cross multiply
   561,468.42x = 842,112.18 × 156,671.10
4. Step 4: Simplify right side
   561,468.42x = 131,934,641,564.00
5. Step 5: Solve for x
   x = 131,934,641,564.00/561,468.42
6. Step 6: Final answer
   x = 234,981.41