Finding the Fourth Proportional to 9,581.40, 13,222.35 and 5,602.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,581.40 : 13,222.35 = 5,602.50 : x
2. Step 2: Convert to fraction form
   9,581.40/13,222.35 = 5,602.50/x
3. Step 3: Cross multiply
   9,581.40x = 13,222.35 × 5,602.50
4. Step 4: Simplify right side
   9,581.40x = 74,078,215.88
5. Step 5: Solve for x
   x = 74,078,215.88/9,581.40
6. Step 6: Final answer
   x = 7,731.46