Finding the Fourth Proportional to 115,123.68, 172,366.65 and 58,842.60

Step by Step Solution

1. Step 1: Write the proportion equation
   115,123.68 : 172,366.65 = 58,842.60 : x
2. Step 2: Convert to fraction form
   115,123.68/172,366.65 = 58,842.60/x
3. Step 3: Cross multiply
   115,123.68x = 172,366.65 × 58,842.60
4. Step 4: Simplify right side
   115,123.68x = 10,142,501,839.29
5. Step 5: Solve for x
   x = 10,142,501,839.29/115,123.68
6. Step 6: Final answer
   x = 88,100.92