Finding the Fourth Proportional to 10,646.56, 14,691.72 and 5,931.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,646.56 : 14,691.72 = 5,931.28 : x
2. Step 2: Convert to fraction form
   10,646.56/14,691.72 = 5,931.28/x
3. Step 3: Cross multiply
   10,646.56x = 14,691.72 × 5,931.28
4. Step 4: Simplify right side
   10,646.56x = 87,140,705.00
5. Step 5: Solve for x
   x = 87,140,705.00/10,646.56
6. Step 6: Final answer
   x = 8,184.87