Finding the Fourth Proportional to 85,468.32, 128,221.20 and 32,902.56

Step by Step Solution

1. Step 1: Write the proportion equation
   85,468.32 : 128,221.20 = 32,902.56 : x
2. Step 2: Convert to fraction form
   85,468.32/128,221.20 = 32,902.56/x
3. Step 3: Cross multiply
   85,468.32x = 128,221.20 × 32,902.56
4. Step 4: Simplify right side
   85,468.32x = 4,218,805,726.27
5. Step 5: Solve for x
   x = 4,218,805,726.27/85,468.32
6. Step 6: Final answer
   x = 49,361.05