Finding the Fourth Proportional to 7,902.18, 10,895.76 and 5,385.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,902.18 : 10,895.76 = 5,385.78 : x
2. Step 2: Convert to fraction form
   7,902.18/10,895.76 = 5,385.78/x
3. Step 3: Cross multiply
   7,902.18x = 10,895.76 × 5,385.78
4. Step 4: Simplify right side
   7,902.18x = 58,682,166.29
5. Step 5: Solve for x
   x = 58,682,166.29/7,902.18
6. Step 6: Final answer
   x = 7,426.07