Finding the Fourth Proportional to 9,963.41, 13,749.85 and 5,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,963.41 : 13,749.85 = 5,487.50 : x
2. Step 2: Convert to fraction form
   9,963.41/13,749.85 = 5,487.50/x
3. Step 3: Cross multiply
   9,963.41x = 13,749.85 × 5,487.50
4. Step 4: Simplify right side
   9,963.41x = 75,452,265.77
5. Step 5: Solve for x
   x = 75,452,265.77/9,963.41
6. Step 6: Final answer
   x = 7,572.94