Finding the Fourth Proportional to 113,300.61, 156,342.57 and 65,545.03

Step by Step Solution

1. Step 1: Write the proportion equation
   113,300.61 : 156,342.57 = 65,545.03 : x
2. Step 2: Convert to fraction form
   113,300.61/156,342.57 = 65,545.03/x
3. Step 3: Cross multiply
   113,300.61x = 156,342.57 × 65,545.03
4. Step 4: Simplify right side
   113,300.61x = 10,247,478,759.25
5. Step 5: Solve for x
   x = 10,247,478,759.25/113,300.61
6. Step 6: Final answer
   x = 90,445.05