Finding the Fourth Proportional to 42,648.56, 63,970.15 and 16,655.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,648.56 : 63,970.15 = 16,655.47 : x
2. Step 2: Convert to fraction form
   42,648.56/63,970.15 = 16,655.47/x
3. Step 3: Cross multiply
   42,648.56x = 63,970.15 × 16,655.47
4. Step 4: Simplify right side
   42,648.56x = 1,065,452,775.11
5. Step 5: Solve for x
   x = 1,065,452,775.11/42,648.56
6. Step 6: Final answer
   x = 24,982.15