Finding the Fourth Proportional to 115,112.96, 172,669.86 and 58,922.40

Step by Step Solution

1. Step 1: Write the proportion equation
   115,112.96 : 172,669.86 = 58,922.40 : x
2. Step 2: Convert to fraction form
   115,112.96/172,669.86 = 58,922.40/x
3. Step 3: Cross multiply
   115,112.96x = 172,669.86 × 58,922.40
4. Step 4: Simplify right side
   115,112.96x = 10,174,122,558.86
5. Step 5: Solve for x
   x = 10,174,122,558.86/115,112.96
6. Step 6: Final answer
   x = 88,383.81