Finding the Fourth Proportional to 89,404.69, 123,335.84 and 65,153.66

Step by Step Solution

1. Step 1: Write the proportion equation
   89,404.69 : 123,335.84 = 65,153.66 : x
2. Step 2: Convert to fraction form
   89,404.69/123,335.84 = 65,153.66/x
3. Step 3: Cross multiply
   89,404.69x = 123,335.84 × 65,153.66
4. Step 4: Simplify right side
   89,404.69x = 8,035,780,931.38
5. Step 5: Solve for x
   x = 8,035,780,931.38/89,404.69
6. Step 6: Final answer
   x = 89,880.98