Finding the Fourth Proportional to 124,575.50, 186,863.29 and 31,081.25

Step by Step Solution

1. Step 1: Write the proportion equation
   124,575.50 : 186,863.29 = 31,081.25 : x
2. Step 2: Convert to fraction form
   124,575.50/186,863.29 = 31,081.25/x
3. Step 3: Cross multiply
   124,575.50x = 186,863.29 × 31,081.25
4. Step 4: Simplify right side
   124,575.50x = 5,807,945,021.77
5. Step 5: Solve for x
   x = 5,807,945,021.77/124,575.50
6. Step 6: Final answer
   x = 46,621.89