Finding the Fourth Proportional to 121,152.83, 181,807.01 and 58,789.31

Step by Step Solution

1. Step 1: Write the proportion equation
   121,152.83 : 181,807.01 = 58,789.31 : x
2. Step 2: Convert to fraction form
   121,152.83/181,807.01 = 58,789.31/x
3. Step 3: Cross multiply
   121,152.83x = 181,807.01 × 58,789.31
4. Step 4: Simplify right side
   121,152.83x = 10,688,308,377.12
5. Step 5: Solve for x
   x = 10,688,308,377.12/121,152.83
6. Step 6: Final answer
   x = 88,221.70