Finding the Fourth Proportional to 89,686.64, 134,518.52 and 26,505.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,686.64 : 134,518.52 = 26,505.43 : x
2. Step 2: Convert to fraction form
   89,686.64/134,518.52 = 26,505.43/x
3. Step 3: Cross multiply
   89,686.64x = 134,518.52 × 26,505.43
4. Step 4: Simplify right side
   89,686.64x = 3,565,470,945.53
5. Step 5: Solve for x
   x = 3,565,470,945.53/89,686.64
6. Step 6: Final answer
   x = 39,754.76