Finding the Fourth Proportional to 10,045.31, 15,048.36 and 4,772.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,045.31 : 15,048.36 = 4,772.82 : x
2. Step 2: Convert to fraction form
   10,045.31/15,048.36 = 4,772.82/x
3. Step 3: Cross multiply
   10,045.31x = 15,048.36 × 4,772.82
4. Step 4: Simplify right side
   10,045.31x = 71,823,113.58
5. Step 5: Solve for x
   x = 71,823,113.58/10,045.31
6. Step 6: Final answer
   x = 7,149.92