Finding the Fourth Proportional to 110,452.69, 152,417.45 and 65,128.48

Step by Step Solution

1. Step 1: Write the proportion equation
   110,452.69 : 152,417.45 = 65,128.48 : x
2. Step 2: Convert to fraction form
   110,452.69/152,417.45 = 65,128.48/x
3. Step 3: Cross multiply
   110,452.69x = 152,417.45 × 65,128.48
4. Step 4: Simplify right side
   110,452.69x = 9,926,716,843.98
5. Step 5: Solve for x
   x = 9,926,716,843.98/110,452.69
6. Step 6: Final answer
   x = 89,873.02