Finding the Fourth Proportional to 124,499.16, 171,759.88 and 76,669.48

Step by Step Solution

1. Step 1: Write the proportion equation
   124,499.16 : 171,759.88 = 76,669.48 : x
2. Step 2: Convert to fraction form
   124,499.16/171,759.88 = 76,669.48/x
3. Step 3: Cross multiply
   124,499.16x = 171,759.88 × 76,669.48
4. Step 4: Simplify right side
   124,499.16x = 13,168,740,684.46
5. Step 5: Solve for x
   x = 13,168,740,684.46/124,499.16
6. Step 6: Final answer
   x = 105,773.73