Finding the Fourth Proportional to 15,145.56, 22,722.02 and 4,757.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,145.56 : 22,722.02 = 4,757.31 : x
2. Step 2: Convert to fraction form
   15,145.56/22,722.02 = 4,757.31/x
3. Step 3: Cross multiply
   15,145.56x = 22,722.02 × 4,757.31
4. Step 4: Simplify right side
   15,145.56x = 108,095,761.66
5. Step 5: Solve for x
   x = 108,095,761.66/15,145.56
6. Step 6: Final answer
   x = 7,137.12