Finding the Fourth Proportional to 115,646.31, 173,341.94 and 75,648.69

Step by Step Solution

1. Step 1: Write the proportion equation
   115,646.31 : 173,341.94 = 75,648.69 : x
2. Step 2: Convert to fraction form
   115,646.31/173,341.94 = 75,648.69/x
3. Step 3: Cross multiply
   115,646.31x = 173,341.94 × 75,648.69
4. Step 4: Simplify right side
   115,646.31x = 13,113,090,304.82
5. Step 5: Solve for x
   x = 13,113,090,304.82/115,646.31
6. Step 6: Final answer
   x = 113,389.61