Finding the Fourth Proportional to 116,359.57, 160,592.40 and 65,376.25

Step by Step Solution

1. Step 1: Write the proportion equation
   116,359.57 : 160,592.40 = 65,376.25 : x
2. Step 2: Convert to fraction form
   116,359.57/160,592.40 = 65,376.25/x
3. Step 3: Cross multiply
   116,359.57x = 160,592.40 × 65,376.25
4. Step 4: Simplify right side
   116,359.57x = 10,498,928,890.50
5. Step 5: Solve for x
   x = 10,498,928,890.50/116,359.57
6. Step 6: Final answer
   x = 90,228.32