Finding the Fourth Proportional to 10,656.07, 15,988.71 and 5,719.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,656.07 : 15,988.71 = 5,719.94 : x
2. Step 2: Convert to fraction form
   10,656.07/15,988.71 = 5,719.94/x
3. Step 3: Cross multiply
   10,656.07x = 15,988.71 × 5,719.94
4. Step 4: Simplify right side
   10,656.07x = 91,454,461.88
5. Step 5: Solve for x
   x = 91,454,461.88/10,656.07
6. Step 6: Final answer
   x = 8,582.38