Finding the Fourth Proportional to 11,055.32, 16,585.72 and 5,210.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,055.32 : 16,585.72 = 5,210.56 : x
2. Step 2: Convert to fraction form
   11,055.32/16,585.72 = 5,210.56/x
3. Step 3: Cross multiply
   11,055.32x = 16,585.72 × 5,210.56
4. Step 4: Simplify right side
   11,055.32x = 86,420,889.20
5. Step 5: Solve for x
   x = 86,420,889.20/11,055.32
6. Step 6: Final answer
   x = 7,817.13