Finding the Fourth Proportional to 103,007.18, 142,087.83 and 60,530.78

Step by Step Solution

1. Step 1: Write the proportion equation
   103,007.18 : 142,087.83 = 60,530.78 : x
2. Step 2: Convert to fraction form
   103,007.18/142,087.83 = 60,530.78/x
3. Step 3: Cross multiply
   103,007.18x = 142,087.83 × 60,530.78
4. Step 4: Simplify right side
   103,007.18x = 8,600,687,178.41
5. Step 5: Solve for x
   x = 8,600,687,178.41/103,007.18
6. Step 6: Final answer
   x = 83,496.00