Finding the Fourth Proportional to 81,191.16, 112,061.88 and 49,353.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,191.16 : 112,061.88 = 49,353.30 : x
2. Step 2: Convert to fraction form
   81,191.16/112,061.88 = 49,353.30/x
3. Step 3: Cross multiply
   81,191.16x = 112,061.88 × 49,353.30
4. Step 4: Simplify right side
   81,191.16x = 5,530,623,582.20
5. Step 5: Solve for x
   x = 5,530,623,582.20/81,191.16
6. Step 6: Final answer
   x = 68,118.54