Finding the Fourth Proportional to 8,091.82, 12,139.35 and 2,897.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,091.82 : 12,139.35 = 2,897.02 : x
2. Step 2: Convert to fraction form
   8,091.82/12,139.35 = 2,897.02/x
3. Step 3: Cross multiply
   8,091.82x = 12,139.35 × 2,897.02
4. Step 4: Simplify right side
   8,091.82x = 35,167,939.74
5. Step 5: Solve for x
   x = 35,167,939.74/8,091.82
6. Step 6: Final answer
   x = 4,346.11