Finding the Fourth Proportional to 116,641.59, 160,925.18 and 65,643.99

Step by Step Solution

1. Step 1: Write the proportion equation
   116,641.59 : 160,925.18 = 65,643.99 : x
2. Step 2: Convert to fraction form
   116,641.59/160,925.18 = 65,643.99/x
3. Step 3: Cross multiply
   116,641.59x = 160,925.18 × 65,643.99
4. Step 4: Simplify right side
   116,641.59x = 10,563,770,578.45
5. Step 5: Solve for x
   x = 10,563,770,578.45/116,641.59
6. Step 6: Final answer
   x = 90,566.07