Finding the Fourth Proportional to 7,008.86, 9,671.76 and 3,865.07

Step by Step Solution

1. Step 1: Write the proportion equation
   7,008.86 : 9,671.76 = 3,865.07 : x
2. Step 2: Convert to fraction form
   7,008.86/9,671.76 = 3,865.07/x
3. Step 3: Cross multiply
   7,008.86x = 9,671.76 × 3,865.07
4. Step 4: Simplify right side
   7,008.86x = 37,381,981.06
5. Step 5: Solve for x
   x = 37,381,981.06/7,008.86
6. Step 6: Final answer
   x = 5,333.54