Finding the Fourth Proportional to 13,767.72, 18,999.18 and 7,480.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,767.72 : 18,999.18 = 7,480.14 : x
2. Step 2: Convert to fraction form
   13,767.72/18,999.18 = 7,480.14/x
3. Step 3: Cross multiply
   13,767.72x = 18,999.18 × 7,480.14
4. Step 4: Simplify right side
   13,767.72x = 142,116,526.29
5. Step 5: Solve for x
   x = 142,116,526.29/13,767.72
6. Step 6: Final answer
   x = 10,322.44