Finding the Fourth Proportional to 73,512.32, 101,447.04 and 39,978.24

Step by Step Solution

1. Step 1: Write the proportion equation
   73,512.32 : 101,447.04 = 39,978.24 : x
2. Step 2: Convert to fraction form
   73,512.32/101,447.04 = 39,978.24/x
3. Step 3: Cross multiply
   73,512.32x = 101,447.04 × 39,978.24
4. Step 4: Simplify right side
   73,512.32x = 4,055,674,112.41
5. Step 5: Solve for x
   x = 4,055,674,112.41/73,512.32
6. Step 6: Final answer
   x = 55,169.99