Finding the Fourth Proportional to 13,471.41, 18,590.50 and 7,502.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,471.41 : 18,590.50 = 7,502.72 : x
2. Step 2: Convert to fraction form
   13,471.41/18,590.50 = 7,502.72/x
3. Step 3: Cross multiply
   13,471.41x = 18,590.50 × 7,502.72
4. Step 4: Simplify right side
   13,471.41x = 139,479,278.65
5. Step 5: Solve for x
   x = 139,479,278.65/13,471.41
6. Step 6: Final answer
   x = 10,353.73