Finding the Fourth Proportional to 9,471.48, 13,070.82 and 5,279.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,471.48 : 13,070.82 = 5,279.76 : x
2. Step 2: Convert to fraction form
   9,471.48/13,070.82 = 5,279.76/x
3. Step 3: Cross multiply
   9,471.48x = 13,070.82 × 5,279.76
4. Step 4: Simplify right side
   9,471.48x = 69,010,792.60
5. Step 5: Solve for x
   x = 69,010,792.60/9,471.48
6. Step 6: Final answer
   x = 7,286.17