Finding the Fourth Proportional to 7,053.30, 10,559.18 and 5,212.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,053.30 : 10,559.18 = 5,212.62 : x
2. Step 2: Convert to fraction form
   7,053.30/10,559.18 = 5,212.62/x
3. Step 3: Cross multiply
   7,053.30x = 10,559.18 × 5,212.62
4. Step 4: Simplify right side
   7,053.30x = 55,041,005.88
5. Step 5: Solve for x
   x = 55,041,005.88/7,053.30
6. Step 6: Final answer
   x = 7,803.58