Finding the Fourth Proportional to 14,139.33, 21,205.50 and 4,779.14

Step by Step Solution

1. Step 1: Write the proportion equation
   14,139.33 : 21,205.50 = 4,779.14 : x
2. Step 2: Convert to fraction form
   14,139.33/21,205.50 = 4,779.14/x
3. Step 3: Cross multiply
   14,139.33x = 21,205.50 × 4,779.14
4. Step 4: Simplify right side
   14,139.33x = 101,344,082.39
5. Step 5: Solve for x
   x = 101,344,082.39/14,139.33
6. Step 6: Final answer
   x = 7,167.53