Finding the Fourth Proportional to 31,618.69, 47,342.50 and 19,744.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,618.69 : 47,342.50 = 19,744.02 : x
2. Step 2: Convert to fraction form
   31,618.69/47,342.50 = 19,744.02/x
3. Step 3: Cross multiply
   31,618.69x = 47,342.50 × 19,744.02
4. Step 4: Simplify right side
   31,618.69x = 934,731,217.49
5. Step 5: Solve for x
   x = 934,731,217.49/31,618.69
6. Step 6: Final answer
   x = 29,562.62