Finding the Fourth Proportional to 7,013.88, 10,521.18 and 3,118.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,013.88 : 10,521.18 = 3,118.32 : x
2. Step 2: Convert to fraction form
   7,013.88/10,521.18 = 3,118.32/x
3. Step 3: Cross multiply
   7,013.88x = 10,521.18 × 3,118.32
4. Step 4: Simplify right side
   7,013.88x = 32,808,406.02
5. Step 5: Solve for x
   x = 32,808,406.02/7,013.88
6. Step 6: Final answer
   x = 4,677.64