Finding the Fourth Proportional to 42,407.78, 63,824.42 and 31,932.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,407.78 : 63,824.42 = 31,932.08 : x
2. Step 2: Convert to fraction form
   42,407.78/63,824.42 = 31,932.08/x
3. Step 3: Cross multiply
   42,407.78x = 63,824.42 × 31,932.08
4. Step 4: Simplify right side
   42,407.78x = 2,038,046,485.39
5. Step 5: Solve for x
   x = 2,038,046,485.39/42,407.78
6. Step 6: Final answer
   x = 48,058.32