Finding the Fourth Proportional to 7,898.10, 10,901.08 and 5,386.20

Step by Step Solution

1. Step 1: Write the proportion equation
   7,898.10 : 10,901.08 = 5,386.20 : x
2. Step 2: Convert to fraction form
   7,898.10/10,901.08 = 5,386.20/x
3. Step 3: Cross multiply
   7,898.10x = 10,901.08 × 5,386.20
4. Step 4: Simplify right side
   7,898.10x = 58,715,397.10
5. Step 5: Solve for x
   x = 58,715,397.10/7,898.10
6. Step 6: Final answer
   x = 7,434.12