Finding the Fourth Proportional to 81,693.09, 112,765.43 and 49,429.37

Step by Step Solution

1. Step 1: Write the proportion equation
   81,693.09 : 112,765.43 = 49,429.37 : x
2. Step 2: Convert to fraction form
   81,693.09/112,765.43 = 49,429.37/x
3. Step 3: Cross multiply
   81,693.09x = 112,765.43 × 49,429.37
4. Step 4: Simplify right side
   81,693.09x = 5,573,924,568.17
5. Step 5: Solve for x
   x = 5,573,924,568.17/81,693.09
6. Step 6: Final answer
   x = 68,230.06