Finding the Fourth Proportional to 103,219.50, 142,443.15 and 60,228.55

Step by Step Solution

1. Step 1: Write the proportion equation
   103,219.50 : 142,443.15 = 60,228.55 : x
2. Step 2: Convert to fraction form
   103,219.50/142,443.15 = 60,228.55/x
3. Step 3: Cross multiply
   103,219.50x = 142,443.15 × 60,228.55
4. Step 4: Simplify right side
   103,219.50x = 8,579,144,025.82
5. Step 5: Solve for x
   x = 8,579,144,025.82/103,219.50
6. Step 6: Final answer
   x = 83,115.54