Finding the Fourth Proportional to 42,801.12, 64,204.32 and 16,505.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,801.12 : 64,204.32 = 16,505.52 : x
2. Step 2: Convert to fraction form
   42,801.12/64,204.32 = 16,505.52/x
3. Step 3: Cross multiply
   42,801.12x = 64,204.32 × 16,505.52
4. Step 4: Simplify right side
   42,801.12x = 1,059,725,687.85
5. Step 5: Solve for x
   x = 1,059,725,687.85/42,801.12
6. Step 6: Final answer
   x = 24,759.30