Finding the Fourth Proportional to 10,973.40, 16,466.76 and 4,398.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,973.40 : 16,466.76 = 4,398.72 : x
2. Step 2: Convert to fraction form
   10,973.40/16,466.76 = 4,398.72/x
3. Step 3: Cross multiply
   10,973.40x = 16,466.76 × 4,398.72
4. Step 4: Simplify right side
   10,973.40x = 72,432,666.55
5. Step 5: Solve for x
   x = 72,432,666.55/10,973.40
6. Step 6: Final answer
   x = 6,600.75