Finding the Fourth Proportional to 72,966.72, 100,655.76 and 59,369.97

Step by Step Solution

1. Step 1: Write the proportion equation
   72,966.72 : 100,655.76 = 59,369.97 : x
2. Step 2: Convert to fraction form
   72,966.72/100,655.76 = 59,369.97/x
3. Step 3: Cross multiply
   72,966.72x = 100,655.76 × 59,369.97
4. Step 4: Simplify right side
   72,966.72x = 5,975,929,451.53
5. Step 5: Solve for x
   x = 5,975,929,451.53/72,966.72
6. Step 6: Final answer
   x = 81,899.38