Finding the Fourth Proportional to 9,808.78, 13,536.08 and 5,332.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,808.78 : 13,536.08 = 5,332.50 : x
2. Step 2: Convert to fraction form
   9,808.78/13,536.08 = 5,332.50/x
3. Step 3: Cross multiply
   9,808.78x = 13,536.08 × 5,332.50
4. Step 4: Simplify right side
   9,808.78x = 72,181,078.92
5. Step 5: Solve for x
   x = 72,181,078.92/9,808.78
6. Step 6: Final answer
   x = 7,358.83