Finding the Fourth Proportional to 9,402.53, 12,971.87 and 5,369.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402.53 : 12,971.87 = 5,369.59 : x
2. Step 2: Convert to fraction form
   9,402.53/12,971.87 = 5,369.59/x
3. Step 3: Cross multiply
   9,402.53x = 12,971.87 × 5,369.59
4. Step 4: Simplify right side
   9,402.53x = 69,653,623.43
5. Step 5: Solve for x
   x = 69,653,623.43/9,402.53
6. Step 6: Final answer
   x = 7,407.97