Finding the Fourth Proportional to 10,047.66, 13,865.71 and 5,572.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.66 : 13,865.71 = 5,572.07 : x
2. Step 2: Convert to fraction form
   10,047.66/13,865.71 = 5,572.07/x
3. Step 3: Cross multiply
   10,047.66x = 13,865.71 × 5,572.07
4. Step 4: Simplify right side
   10,047.66x = 77,260,727.57
5. Step 5: Solve for x
   x = 77,260,727.57/10,047.66
6. Step 6: Final answer
   x = 7,689.43