Finding the Fourth Proportional to 10,047.30, 13,866.15 and 5,572.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.30 : 13,866.15 = 5,572.45 : x
2. Step 2: Convert to fraction form
   10,047.30/13,866.15 = 5,572.45/x
3. Step 3: Cross multiply
   10,047.30x = 13,866.15 × 5,572.45
4. Step 4: Simplify right side
   10,047.30x = 77,268,427.57
5. Step 5: Solve for x
   x = 77,268,427.57/10,047.30
6. Step 6: Final answer
   x = 7,690.47