Finding the Fourth Proportional to 103,076.72, 142,268.40 and 60,063.30

Step by Step Solution

1. Step 1: Write the proportion equation
   103,076.72 : 142,268.40 = 60,063.30 : x
2. Step 2: Convert to fraction form
   103,076.72/142,268.40 = 60,063.30/x
3. Step 3: Cross multiply
   103,076.72x = 142,268.40 × 60,063.30
4. Step 4: Simplify right side
   103,076.72x = 8,545,109,589.72
5. Step 5: Solve for x
   x = 8,545,109,589.72/103,076.72
6. Step 6: Final answer
   x = 82,900.48