Finding the Fourth Proportional to 42,245.74, 63,345.88 and 16,932.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,245.74 : 63,345.88 = 16,932.55 : x
2. Step 2: Convert to fraction form
   42,245.74/63,345.88 = 16,932.55/x
3. Step 3: Cross multiply
   42,245.74x = 63,345.88 × 16,932.55
4. Step 4: Simplify right side
   42,245.74x = 1,072,607,280.39
5. Step 5: Solve for x
   x = 1,072,607,280.39/42,245.74
6. Step 6: Final answer
   x = 25,389.71