Finding the Fourth Proportional to 47,388.69, 71,086.14 and 13,655.61

Step by Step Solution

1. Step 1: Write the proportion equation
   47,388.69 : 71,086.14 = 13,655.61 : x
2. Step 2: Convert to fraction form
   47,388.69/71,086.14 = 13,655.61/x
3. Step 3: Cross multiply
   47,388.69x = 71,086.14 × 13,655.61
4. Step 4: Simplify right side
   47,388.69x = 970,724,604.25
5. Step 5: Solve for x
   x = 970,724,604.25/47,388.69
6. Step 6: Final answer
   x = 20,484.31