Finding the Fourth Proportional to 19,693.69, 29,540.49 and 4,902.61

Step by Step Solution

1. Step 1: Write the proportion equation
   19,693.69 : 29,540.49 = 4,902.61 : x
2. Step 2: Convert to fraction form
   19,693.69/29,540.49 = 4,902.61/x
3. Step 3: Cross multiply
   19,693.69x = 29,540.49 × 4,902.61
4. Step 4: Simplify right side
   19,693.69x = 144,825,464.83
5. Step 5: Solve for x
   x = 144,825,464.83/19,693.69
6. Step 6: Final answer
   x = 7,353.90