Finding the Fourth Proportional to 13,779.72, 19,016.22 and 7,492.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,779.72 : 19,016.22 = 7,492.08 : x
2. Step 2: Convert to fraction form
   13,779.72/19,016.22 = 7,492.08/x
3. Step 3: Cross multiply
   13,779.72x = 19,016.22 × 7,492.08
4. Step 4: Simplify right side
   13,779.72x = 142,471,041.54
5. Step 5: Solve for x
   x = 142,471,041.54/13,779.72
6. Step 6: Final answer
   x = 10,339.18