Finding the Fourth Proportional to 42,448, 63,223.60 and 40,227.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,448 : 63,223.60 = 40,227.52 : x
2. Step 2: Convert to fraction form
   42,448/63,223.60 = 40,227.52/x
3. Step 3: Cross multiply
   42,448x = 63,223.60 × 40,227.52
4. Step 4: Simplify right side
   42,448x = 2,543,328,633.47
5. Step 5: Solve for x
   x = 2,543,328,633.47/42,448
6. Step 6: Final answer
   x = 59,916.34