Finding the Fourth Proportional to 115,051.38, 172,681.76 and 58,930.12

Step by Step Solution

1. Step 1: Write the proportion equation
   115,051.38 : 172,681.76 = 58,930.12 : x
2. Step 2: Convert to fraction form
   115,051.38/172,681.76 = 58,930.12/x
3. Step 3: Cross multiply
   115,051.38x = 172,681.76 × 58,930.12
4. Step 4: Simplify right side
   115,051.38x = 10,176,156,838.61
5. Step 5: Solve for x
   x = 10,176,156,838.61/115,051.38
6. Step 6: Final answer
   x = 88,448.80