Finding the Fourth Proportional to 9,678.08, 13,358.22 and 5,488.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,678.08 : 13,358.22 = 5,488.76 : x
2. Step 2: Convert to fraction form
   9,678.08/13,358.22 = 5,488.76/x
3. Step 3: Cross multiply
   9,678.08x = 13,358.22 × 5,488.76
4. Step 4: Simplify right side
   9,678.08x = 73,320,063.61
5. Step 5: Solve for x
   x = 73,320,063.61/9,678.08
6. Step 6: Final answer
   x = 7,575.89