Finding the Fourth Proportional to 10,892.66, 16,342.65 and 4,320.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892.66 : 16,342.65 = 4,320.72 : x
2. Step 2: Convert to fraction form
   10,892.66/16,342.65 = 4,320.72/x
3. Step 3: Cross multiply
   10,892.66x = 16,342.65 × 4,320.72
4. Step 4: Simplify right side
   10,892.66x = 70,612,014.71
5. Step 5: Solve for x
   x = 70,612,014.71/10,892.66
6. Step 6: Final answer
   x = 6,482.53