Finding the Fourth Proportional to 9,624.76, 13,279.98 and 5,431.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,624.76 : 13,279.98 = 5,431.48 : x
2. Step 2: Convert to fraction form
   9,624.76/13,279.98 = 5,431.48/x
3. Step 3: Cross multiply
   9,624.76x = 13,279.98 × 5,431.48
4. Step 4: Simplify right side
   9,624.76x = 72,129,945.77
5. Step 5: Solve for x
   x = 72,129,945.77/9,624.76
6. Step 6: Final answer
   x = 7,494.21