Finding the Fourth Proportional to 72,233.64, 99,680.51 and 39,967.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,233.64 : 99,680.51 = 39,967.41 : x
2. Step 2: Convert to fraction form
   72,233.64/99,680.51 = 39,967.41/x
3. Step 3: Cross multiply
   72,233.64x = 99,680.51 × 39,967.41
4. Step 4: Simplify right side
   72,233.64x = 3,983,971,612.34
5. Step 5: Solve for x
   x = 3,983,971,612.34/72,233.64
6. Step 6: Final answer
   x = 55,153.96