Finding the Fourth Proportional to 143,388.88, 214,952.12 and 60,288.72

Step by Step Solution

1. Step 1: Write the proportion equation
   143,388.88 : 214,952.12 = 60,288.72 : x
2. Step 2: Convert to fraction form
   143,388.88/214,952.12 = 60,288.72/x
3. Step 3: Cross multiply
   143,388.88x = 214,952.12 × 60,288.72
4. Step 4: Simplify right side
   143,388.88x = 12,959,188,176.09
5. Step 5: Solve for x
   x = 12,959,188,176.09/143,388.88
6. Step 6: Final answer
   x = 90,377.92