Finding the Fourth Proportional to 10,047.74, 13,865.82 and 5,572.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.74 : 13,865.82 = 5,572.15 : x
2. Step 2: Convert to fraction form
   10,047.74/13,865.82 = 5,572.15/x
3. Step 3: Cross multiply
   10,047.74x = 13,865.82 × 5,572.15
4. Step 4: Simplify right side
   10,047.74x = 77,262,411.58
5. Step 5: Solve for x
   x = 77,262,411.58/10,047.74
6. Step 6: Final answer
   x = 7,689.53