Finding the Fourth Proportional to 101,012.81, 139,414.12 and 60,767.25

Step by Step Solution

1. Step 1: Write the proportion equation
   101,012.81 : 139,414.12 = 60,767.25 : x
2. Step 2: Convert to fraction form
   101,012.81/139,414.12 = 60,767.25/x
3. Step 3: Cross multiply
   101,012.81x = 139,414.12 × 60,767.25
4. Step 4: Simplify right side
   101,012.81x = 8,471,812,008.85
5. Step 5: Solve for x
   x = 8,471,812,008.85/101,012.81
6. Step 6: Final answer
   x = 83,868.69