Finding the Fourth Proportional to 9,523.77, 13,142.37 and 5,274.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,523.77 : 13,142.37 = 5,274.99 : x
2. Step 2: Convert to fraction form
   9,523.77/13,142.37 = 5,274.99/x
3. Step 3: Cross multiply
   9,523.77x = 13,142.37 × 5,274.99
4. Step 4: Simplify right side
   9,523.77x = 69,325,870.33
5. Step 5: Solve for x
   x = 69,325,870.33/9,523.77
6. Step 6: Final answer
   x = 7,279.25