Finding the Fourth Proportional to 115,144.16, 172,397.34 and 58,863.12

Step by Step Solution

1. Step 1: Write the proportion equation
   115,144.16 : 172,397.34 = 58,863.12 : x
2. Step 2: Convert to fraction form
   115,144.16/172,397.34 = 58,863.12/x
3. Step 3: Cross multiply
   115,144.16x = 172,397.34 × 58,863.12
4. Step 4: Simplify right side
   115,144.16x = 10,147,845,312.10
5. Step 5: Solve for x
   x = 10,147,845,312.10/115,144.16
6. Step 6: Final answer
   x = 88,131.65