Finding the Fourth Proportional to 81,088.18, 111,881.73 and 49,255.18

Step by Step Solution

1. Step 1: Write the proportion equation
   81,088.18 : 111,881.73 = 49,255.18 : x
2. Step 2: Convert to fraction form
   81,088.18/111,881.73 = 49,255.18/x
3. Step 3: Cross multiply
   81,088.18x = 111,881.73 × 49,255.18
4. Step 4: Simplify right side
   81,088.18x = 5,510,754,749.86
5. Step 5: Solve for x
   x = 5,510,754,749.86/81,088.18
6. Step 6: Final answer
   x = 67,960.03