Finding the Fourth Proportional to 13,752.71, 18,978.74 and 7,465.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,752.71 : 18,978.74 = 7,465.09 : x
2. Step 2: Convert to fraction form
   13,752.71/18,978.74 = 7,465.09/x
3. Step 3: Cross multiply
   13,752.71x = 18,978.74 × 7,465.09
4. Step 4: Simplify right side
   13,752.71x = 141,678,002.19
5. Step 5: Solve for x
   x = 141,678,002.19/13,752.71
6. Step 6: Final answer
   x = 10,301.82