Finding the Fourth Proportional to 60,719.72, 83,764.61 and 39,491.24

Step by Step Solution

1. Step 1: Write the proportion equation
   60,719.72 : 83,764.61 = 39,491.24 : x
2. Step 2: Convert to fraction form
   60,719.72/83,764.61 = 39,491.24/x
3. Step 3: Cross multiply
   60,719.72x = 83,764.61 × 39,491.24
4. Step 4: Simplify right side
   60,719.72x = 3,307,967,848.83
5. Step 5: Solve for x
   x = 3,307,967,848.83/60,719.72
6. Step 6: Final answer
   x = 54,479.30