Finding the Fourth Proportional to 42,656.76, 63,985.55 and 16,355.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,656.76 : 63,985.55 = 16,355.25 : x
2. Step 2: Convert to fraction form
   42,656.76/63,985.55 = 16,355.25/x
3. Step 3: Cross multiply
   42,656.76x = 63,985.55 × 16,355.25
4. Step 4: Simplify right side
   42,656.76x = 1,046,499,584.86
5. Step 5: Solve for x
   x = 1,046,499,584.86/42,656.76
6. Step 6: Final answer
   x = 24,533.03