Finding the Fourth Proportional to 7,030.53, 10,536.89 and 3,521.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,030.53 : 10,536.89 = 3,521.91 : x
2. Step 2: Convert to fraction form
   7,030.53/10,536.89 = 3,521.91/x
3. Step 3: Cross multiply
   7,030.53x = 10,536.89 × 3,521.91
4. Step 4: Simplify right side
   7,030.53x = 37,109,960.65
5. Step 5: Solve for x
   x = 37,109,960.65/7,030.53
6. Step 6: Final answer
   x = 5,278.40