Finding the Fourth Proportional to 81,417.45, 122,143.59 and 25,256.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,417.45 : 122,143.59 = 25,256.34 : x
2. Step 2: Convert to fraction form
   81,417.45/122,143.59 = 25,256.34/x
3. Step 3: Cross multiply
   81,417.45x = 122,143.59 × 25,256.34
4. Step 4: Simplify right side
   81,417.45x = 3,084,900,037.86
5. Step 5: Solve for x
   x = 3,084,900,037.86/81,417.45
6. Step 6: Final answer
   x = 37,889.91