Finding the Fourth Proportional to 74,854.40, 111,733.52 and 65,997.28

Step by Step Solution

1. Step 1: Write the proportion equation
   74,854.40 : 111,733.52 = 65,997.28 : x
2. Step 2: Convert to fraction form
   74,854.40/111,733.52 = 65,997.28/x
3. Step 3: Cross multiply
   74,854.40x = 111,733.52 × 65,997.28
4. Step 4: Simplify right side
   74,854.40x = 7,374,108,404.83
5. Step 5: Solve for x
   x = 7,374,108,404.83/74,854.40
6. Step 6: Final answer
   x = 98,512.69