Finding the Fourth Proportional to 81,843.46, 112,454.47 and 65,047.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,843.46 : 112,454.47 = 65,047.30 : x
2. Step 2: Convert to fraction form
   81,843.46/112,454.47 = 65,047.30/x
3. Step 3: Cross multiply
   81,843.46x = 112,454.47 × 65,047.30
4. Step 4: Simplify right side
   81,843.46x = 7,314,859,646.43
5. Step 5: Solve for x
   x = 7,314,859,646.43/81,843.46
6. Step 6: Final answer
   x = 89,376.23