Finding the Fourth Proportional to 99,294, 137,025.72 and 65,760

Step by Step Solution

1. Step 1: Write the proportion equation
   99,294 : 137,025.72 = 65,760 : x
2. Step 2: Convert to fraction form
   99,294/137,025.72 = 65,760/x
3. Step 3: Cross multiply
   99,294x = 137,025.72 × 65,760
4. Step 4: Simplify right side
   99,294x = 9,010,811,347.20
5. Step 5: Solve for x
   x = 9,010,811,347.20/99,294
6. Step 6: Final answer
   x = 90,748.80