Finding the Fourth Proportional to 10,516.66, 15,784.71 and 5,326.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,516.66 : 15,784.71 = 5,326.18 : x
2. Step 2: Convert to fraction form
   10,516.66/15,784.71 = 5,326.18/x
3. Step 3: Cross multiply
   10,516.66x = 15,784.71 × 5,326.18
4. Step 4: Simplify right side
   10,516.66x = 84,072,206.71
5. Step 5: Solve for x
   x = 84,072,206.71/10,516.66
6. Step 6: Final answer
   x = 7,994.19