Finding the Fourth Proportional to 85,098.31, 117,451.41 and 49,288.31

Step by Step Solution

1. Step 1: Write the proportion equation
   85,098.31 : 117,451.41 = 49,288.31 : x
2. Step 2: Convert to fraction form
   85,098.31/117,451.41 = 49,288.31/x
3. Step 3: Cross multiply
   85,098.31x = 117,451.41 × 49,288.31
4. Step 4: Simplify right side
   85,098.31x = 5,788,980,918.76
5. Step 5: Solve for x
   x = 5,788,980,918.76/85,098.31
6. Step 6: Final answer
   x = 68,026.98