Finding the Fourth Proportional to 250,027.50, 375,080.32 and 81,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   250,027.50 : 375,080.32 = 81,508.72 : x
2. Step 2: Convert to fraction form
   250,027.50/375,080.32 = 81,508.72/x
3. Step 3: Cross multiply
   250,027.50x = 375,080.32 × 81,508.72
4. Step 4: Simplify right side
   250,027.50x = 30,572,316,780.39
5. Step 5: Solve for x
   x = 30,572,316,780.39/250,027.50
6. Step 6: Final answer
   x = 122,275.82