Finding the Fourth Proportional to 81,714.72, 122,572.18 and 25,555.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,714.72 : 122,572.18 = 25,555.12 : x
2. Step 2: Convert to fraction form
   81,714.72/122,572.18 = 25,555.12/x
3. Step 3: Cross multiply
   81,714.72x = 122,572.18 × 25,555.12
4. Step 4: Simplify right side
   81,714.72x = 3,132,346,768.56
5. Step 5: Solve for x
   x = 3,132,346,768.56/81,714.72
6. Step 6: Final answer
   x = 38,332.71