Finding the Fourth Proportional to 9,761.63, 13,473.47 and 5,572.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,761.63 : 13,473.47 = 5,572.31 : x
2. Step 2: Convert to fraction form
   9,761.63/13,473.47 = 5,572.31/x
3. Step 3: Cross multiply
   9,761.63x = 13,473.47 × 5,572.31
4. Step 4: Simplify right side
   9,761.63x = 75,078,298.18
5. Step 5: Solve for x
   x = 75,078,298.18/9,761.63
6. Step 6: Final answer
   x = 7,691.17