Finding the Fourth Proportional to 64,750.78, 89,325.02 and 42,096.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,750.78 : 89,325.02 = 42,096.88 : x
2. Step 2: Convert to fraction form
   64,750.78/89,325.02 = 42,096.88/x
3. Step 3: Cross multiply
   64,750.78x = 89,325.02 × 42,096.88
4. Step 4: Simplify right side
   64,750.78x = 3,760,304,647.94
5. Step 5: Solve for x
   x = 3,760,304,647.94/64,750.78
6. Step 6: Final answer
   x = 58,073.50