Finding the Fourth Proportional to 9,523.74, 13,142.58 and 5,274.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,523.74 : 13,142.58 = 5,274.69 : x
2. Step 2: Convert to fraction form
   9,523.74/13,142.58 = 5,274.69/x
3. Step 3: Cross multiply
   9,523.74x = 13,142.58 × 5,274.69
4. Step 4: Simplify right side
   9,523.74x = 69,323,091.96
5. Step 5: Solve for x
   x = 69,323,091.96/9,523.74
6. Step 6: Final answer
   x = 7,278.98