Finding the Fourth Proportional to 10,153.86, 15,206.20 and 7,025.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,153.86 : 15,206.20 = 7,025.10 : x
2. Step 2: Convert to fraction form
   10,153.86/15,206.20 = 7,025.10/x
3. Step 3: Cross multiply
   10,153.86x = 15,206.20 × 7,025.10
4. Step 4: Simplify right side
   10,153.86x = 106,825,075.62
5. Step 5: Solve for x
   x = 106,825,075.62/10,153.86
6. Step 6: Final answer
   x = 10,520.64