Finding the Fourth Proportional to 9,248.58, 12,763.91 and 5,057.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,248.58 : 12,763.91 = 5,057.46 : x
2. Step 2: Convert to fraction form
   9,248.58/12,763.91 = 5,057.46/x
3. Step 3: Cross multiply
   9,248.58x = 12,763.91 × 5,057.46
4. Step 4: Simplify right side
   9,248.58x = 64,552,964.27
5. Step 5: Solve for x
   x = 64,552,964.27/9,248.58
6. Step 6: Final answer
   x = 6,979.77