Finding the Fourth Proportional to 124,667.12, 172,033.80 and 76,923.92

Step by Step Solution

1. Step 1: Write the proportion equation
   124,667.12 : 172,033.80 = 76,923.92 : x
2. Step 2: Convert to fraction form
   124,667.12/172,033.80 = 76,923.92/x
3. Step 3: Cross multiply
   124,667.12x = 172,033.80 × 76,923.92
4. Step 4: Simplify right side
   124,667.12x = 13,233,514,268.50
5. Step 5: Solve for x
   x = 13,233,514,268.50/124,667.12
6. Step 6: Final answer
   x = 106,150.80