Finding the Fourth Proportional to 10,021.53, 15,012.18 and 4,677.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,021.53 : 15,012.18 = 4,677.15 : x
2. Step 2: Convert to fraction form
   10,021.53/15,012.18 = 4,677.15/x
3. Step 3: Cross multiply
   10,021.53x = 15,012.18 × 4,677.15
4. Step 4: Simplify right side
   10,021.53x = 70,214,217.69
5. Step 5: Solve for x
   x = 70,214,217.69/10,021.53
6. Step 6: Final answer
   x = 7,006.34