Finding the Fourth Proportional to 85,215.78, 117,598.17 and 49,426.98

Step by Step Solution

1. Step 1: Write the proportion equation
   85,215.78 : 117,598.17 = 49,426.98 : x
2. Step 2: Convert to fraction form
   85,215.78/117,598.17 = 49,426.98/x
3. Step 3: Cross multiply
   85,215.78x = 117,598.17 × 49,426.98
4. Step 4: Simplify right side
   85,215.78x = 5,812,522,396.63
5. Step 5: Solve for x
   x = 5,812,522,396.63/85,215.78
6. Step 6: Final answer
   x = 68,209.46