Finding the Fourth Proportional to 10,521.51, 14,519.74 and 5,741.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.51 : 14,519.74 = 5,741.40 : x
2. Step 2: Convert to fraction form
   10,521.51/14,519.74 = 5,741.40/x
3. Step 3: Cross multiply
   10,521.51x = 14,519.74 × 5,741.40
4. Step 4: Simplify right side
   10,521.51x = 83,363,562.64
5. Step 5: Solve for x
   x = 83,363,562.64/10,521.51
6. Step 6: Final answer
   x = 7,923.16