Finding the Fourth Proportional to 124,150.29, 171,315.54 and 69,689.98

Step by Step Solution

1. Step 1: Write the proportion equation
   124,150.29 : 171,315.54 = 69,689.98 : x
2. Step 2: Convert to fraction form
   124,150.29/171,315.54 = 69,689.98/x
3. Step 3: Cross multiply
   124,150.29x = 171,315.54 × 69,689.98
4. Step 4: Simplify right side
   124,150.29x = 11,938,976,556.29
5. Step 5: Solve for x
   x = 11,938,976,556.29/124,150.29
6. Step 6: Final answer
   x = 96,165.51