Finding the Fourth Proportional to 85,554.61, 118,063.31 and 49,757.07

Step by Step Solution

1. Step 1: Write the proportion equation
   85,554.61 : 118,063.31 = 49,757.07 : x
2. Step 2: Convert to fraction form
   85,554.61/118,063.31 = 49,757.07/x
3. Step 3: Cross multiply
   85,554.61x = 118,063.31 × 49,757.07
4. Step 4: Simplify right side
   85,554.61x = 5,874,484,380.10
5. Step 5: Solve for x
   x = 5,874,484,380.10/85,554.61
6. Step 6: Final answer
   x = 68,663.56