Finding the Fourth Proportional to 9,773.12, 13,488.71 and 5,581.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,773.12 : 13,488.71 = 5,581.37 : x
2. Step 2: Convert to fraction form
   9,773.12/13,488.71 = 5,581.37/x
3. Step 3: Cross multiply
   9,773.12x = 13,488.71 × 5,581.37
4. Step 4: Simplify right side
   9,773.12x = 75,285,385.98
5. Step 5: Solve for x
   x = 75,285,385.98/9,773.12
6. Step 6: Final answer
   x = 7,703.32