Finding the Fourth Proportional to 72,007.16, 99,367.56 and 39,300.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,007.16 : 99,367.56 = 39,300.32 : x
2. Step 2: Convert to fraction form
   72,007.16/99,367.56 = 39,300.32/x
3. Step 3: Cross multiply
   72,007.16x = 99,367.56 × 39,300.32
4. Step 4: Simplify right side
   72,007.16x = 3,905,176,905.62
5. Step 5: Solve for x
   x = 3,905,176,905.62/72,007.16
6. Step 6: Final answer
   x = 54,233.17