Finding the Fourth Proportional to 89,439.96, 134,155.94 and 26,257.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,439.96 : 134,155.94 = 26,257.56 : x
2. Step 2: Convert to fraction form
   89,439.96/134,155.94 = 26,257.56/x
3. Step 3: Cross multiply
   89,439.96x = 134,155.94 × 26,257.56
4. Step 4: Simplify right side
   89,439.96x = 3,522,607,643.91
5. Step 5: Solve for x
   x = 3,522,607,643.91/89,439.96
6. Step 6: Final answer
   x = 39,385.17