Finding the Fourth Proportional to 10,097.72, 13,888.49 and 8,103.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,097.72 : 13,888.49 = 8,103.90 : x
2. Step 2: Convert to fraction form
   10,097.72/13,888.49 = 8,103.90/x
3. Step 3: Cross multiply
   10,097.72x = 13,888.49 × 8,103.90
4. Step 4: Simplify right side
   10,097.72x = 112,550,893.59
5. Step 5: Solve for x
   x = 112,550,893.59/10,097.72
6. Step 6: Final answer
   x = 11,146.17