Finding the Fourth Proportional to 8,742.71, 13,111.23 and 2,897.75

Step by Step Solution

1. Step 1: Write the proportion equation
   8,742.71 : 13,111.23 = 2,897.75 : x
2. Step 2: Convert to fraction form
   8,742.71/13,111.23 = 2,897.75/x
3. Step 3: Cross multiply
   8,742.71x = 13,111.23 × 2,897.75
4. Step 4: Simplify right side
   8,742.71x = 37,993,066.73
5. Step 5: Solve for x
   x = 37,993,066.73/8,742.71
6. Step 6: Final answer
   x = 4,345.69