Finding the Fourth Proportional to 113,454.32, 156,581.64 and 65,075.12

Step by Step Solution

1. Step 1: Write the proportion equation
   113,454.32 : 156,581.64 = 65,075.12 : x
2. Step 2: Convert to fraction form
   113,454.32/156,581.64 = 65,075.12/x
3. Step 3: Cross multiply
   113,454.32x = 156,581.64 × 65,075.12
4. Step 4: Simplify right side
   113,454.32x = 10,189,569,012.80
5. Step 5: Solve for x
   x = 10,189,569,012.80/113,454.32
6. Step 6: Final answer
   x = 89,812.08