Finding the Fourth Proportional to 13,470.42, 18,588.51 and 7,502.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,470.42 : 18,588.51 = 7,502.61 : x
2. Step 2: Convert to fraction form
   13,470.42/18,588.51 = 7,502.61/x
3. Step 3: Cross multiply
   13,470.42x = 18,588.51 × 7,502.61
4. Step 4: Simplify right side
   13,470.42x = 139,462,341.01
5. Step 5: Solve for x
   x = 139,462,341.01/13,470.42
6. Step 6: Final answer
   x = 10,353.23