Finding the Fourth Proportional to 42,216.30, 63,261.78 and 23,470.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,216.30 : 63,261.78 = 23,470.55 : x
2. Step 2: Convert to fraction form
   42,216.30/63,261.78 = 23,470.55/x
3. Step 3: Cross multiply
   42,216.30x = 63,261.78 × 23,470.55
4. Step 4: Simplify right side
   42,216.30x = 1,484,788,336.92
5. Step 5: Solve for x
   x = 1,484,788,336.92/42,216.30
6. Step 6: Final answer
   x = 35,170.98