Finding the Fourth Proportional to 13,054.96, 18,015.52 and 7,086.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,054.96 : 18,015.52 = 7,086.48 : x
2. Step 2: Convert to fraction form
   13,054.96/18,015.52 = 7,086.48/x
3. Step 3: Cross multiply
   13,054.96x = 18,015.52 × 7,086.48
4. Step 4: Simplify right side
   13,054.96x = 127,666,622.17
5. Step 5: Solve for x
   x = 127,666,622.17/13,054.96
6. Step 6: Final answer
   x = 9,779.17