Finding the Fourth Proportional to 9,559.31, 13,192.02 and 5,580.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.31 : 13,192.02 = 5,580.59 : x
2. Step 2: Convert to fraction form
   9,559.31/13,192.02 = 5,580.59/x
3. Step 3: Cross multiply
   9,559.31x = 13,192.02 × 5,580.59
4. Step 4: Simplify right side
   9,559.31x = 73,619,226.99
5. Step 5: Solve for x
   x = 73,619,226.99/9,559.31
6. Step 6: Final answer
   x = 7,701.31