Finding the Fourth Proportional to 124,947.29, 172,449.46 and 73,988.31

Step by Step Solution

1. Step 1: Write the proportion equation
   124,947.29 : 172,449.46 = 73,988.31 : x
2. Step 2: Convert to fraction form
   124,947.29/172,449.46 = 73,988.31/x
3. Step 3: Cross multiply
   124,947.29x = 172,449.46 × 73,988.31
4. Step 4: Simplify right side
   124,947.29x = 12,759,244,105.81
5. Step 5: Solve for x
   x = 12,759,244,105.81/124,947.29
6. Step 6: Final answer
   x = 102,117.01