Finding the Fourth Proportional to 85,498.24, 128,261.15 and 26,333.89

Step by Step Solution

1. Step 1: Write the proportion equation
   85,498.24 : 128,261.15 = 26,333.89 : x
2. Step 2: Convert to fraction form
   85,498.24/128,261.15 = 26,333.89/x
3. Step 3: Cross multiply
   85,498.24x = 128,261.15 × 26,333.89
4. Step 4: Simplify right side
   85,498.24x = 3,377,614,883.70
5. Step 5: Solve for x
   x = 3,377,614,883.70/85,498.24
6. Step 6: Final answer
   x = 39,505.08