Finding the Fourth Proportional to 9,347.40, 12,899.82 and 5,369.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,347.40 : 12,899.82 = 5,369.76 : x
2. Step 2: Convert to fraction form
   9,347.40/12,899.82 = 5,369.76/x
3. Step 3: Cross multiply
   9,347.40x = 12,899.82 × 5,369.76
4. Step 4: Simplify right side
   9,347.40x = 69,268,957.58
5. Step 5: Solve for x
   x = 69,268,957.58/9,347.40
6. Step 6: Final answer
   x = 7,410.51