Finding the Fourth Proportional to 42,932.34, 64,406.43 and 13,348.26

Step by Step Solution

1. Step 1: Write the proportion equation
   42,932.34 : 64,406.43 = 13,348.26 : x
2. Step 2: Convert to fraction form
   42,932.34/64,406.43 = 13,348.26/x
3. Step 3: Cross multiply
   42,932.34x = 64,406.43 × 13,348.26
4. Step 4: Simplify right side
   42,932.34x = 859,713,773.31
5. Step 5: Solve for x
   x = 859,713,773.31/42,932.34
6. Step 6: Final answer
   x = 20,024.85