Finding the Fourth Proportional to 110,456.26, 152,428.43 and 65,136.15

Step by Step Solution

1. Step 1: Write the proportion equation
   110,456.26 : 152,428.43 = 65,136.15 : x
2. Step 2: Convert to fraction form
   110,456.26/152,428.43 = 65,136.15/x
3. Step 3: Cross multiply
   110,456.26x = 152,428.43 × 65,136.15
4. Step 4: Simplify right side
   110,456.26x = 9,928,601,243.58
5. Step 5: Solve for x
   x = 9,928,601,243.58/110,456.26
6. Step 6: Final answer
   x = 89,887.18