Finding the Fourth Proportional to 81,563.17, 112,492.24 and 67,391.41

Step by Step Solution

1. Step 1: Write the proportion equation
   81,563.17 : 112,492.24 = 67,391.41 : x
2. Step 2: Convert to fraction form
   81,563.17/112,492.24 = 67,391.41/x
3. Step 3: Cross multiply
   81,563.17x = 112,492.24 × 67,391.41
4. Step 4: Simplify right side
   81,563.17x = 7,581,010,667.66
5. Step 5: Solve for x
   x = 7,581,010,667.66/81,563.17
6. Step 6: Final answer
   x = 92,946.49