Finding the Fourth Proportional to 11,438.56, 17,160 and 4,864.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,438.56 : 17,160 = 4,864.72 : x
2. Step 2: Convert to fraction form
   11,438.56/17,160 = 4,864.72/x
3. Step 3: Cross multiply
   11,438.56x = 17,160 × 4,864.72
4. Step 4: Simplify right side
   11,438.56x = 83,478,595.20
5. Step 5: Solve for x
   x = 83,478,595.20/11,438.56
6. Step 6: Final answer
   x = 7,298.00