Finding the Fourth Proportional to 42,932.25, 64,398.42 and 13,350.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,932.25 : 64,398.42 = 13,350.06 : x
2. Step 2: Convert to fraction form
   42,932.25/64,398.42 = 13,350.06/x
3. Step 3: Cross multiply
   42,932.25x = 64,398.42 × 13,350.06
4. Step 4: Simplify right side
   42,932.25x = 859,722,770.91
5. Step 5: Solve for x
   x = 859,722,770.91/42,932.25
6. Step 6: Final answer
   x = 20,025.10