Finding the Fourth Proportional to 81,162.90, 112,039.29 and 49,341.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,162.90 : 112,039.29 = 49,341.96 : x
2. Step 2: Convert to fraction form
   81,162.90/112,039.29 = 49,341.96/x
3. Step 3: Cross multiply
   81,162.90x = 112,039.29 × 49,341.96
4. Step 4: Simplify right side
   81,162.90x = 5,528,238,165.61
5. Step 5: Solve for x
   x = 5,528,238,165.61/81,162.90
6. Step 6: Final answer
   x = 68,112.87