Finding the Fourth Proportional to 124,897.94, 172,359.15 and 68,309.31

Step by Step Solution

1. Step 1: Write the proportion equation
   124,897.94 : 172,359.15 = 68,309.31 : x
2. Step 2: Convert to fraction form
   124,897.94/172,359.15 = 68,309.31/x
3. Step 3: Cross multiply
   124,897.94x = 172,359.15 × 68,309.31
4. Step 4: Simplify right side
   124,897.94x = 11,773,734,608.69
5. Step 5: Solve for x
   x = 11,773,734,608.69/124,897.94
6. Step 6: Final answer
   x = 94,266.84