Finding the Fourth Proportional to 13,884.56, 19,160.22 and 7,918.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,884.56 : 19,160.22 = 7,918.15 : x
2. Step 2: Convert to fraction form
   13,884.56/19,160.22 = 7,918.15/x
3. Step 3: Cross multiply
   13,884.56x = 19,160.22 × 7,918.15
4. Step 4: Simplify right side
   13,884.56x = 151,713,456.40
5. Step 5: Solve for x
   x = 151,713,456.40/13,884.56
6. Step 6: Final answer
   x = 10,926.77