Finding the Fourth Proportional to 84,881.31, 117,139.28 and 49,082.55

Step by Step Solution

1. Step 1: Write the proportion equation
   84,881.31 : 117,139.28 = 49,082.55 : x
2. Step 2: Convert to fraction form
   84,881.31/117,139.28 = 49,082.55/x
3. Step 3: Cross multiply
   84,881.31x = 117,139.28 × 49,082.55
4. Step 4: Simplify right side
   84,881.31x = 5,749,494,322.15
5. Step 5: Solve for x
   x = 5,749,494,322.15/84,881.31
6. Step 6: Final answer
   x = 67,735.69