Finding the Fourth Proportional to 39,947.48, 59,926.89 and 21,222.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,947.48 : 59,926.89 = 21,222.62 : x
2. Step 2: Convert to fraction form
   39,947.48/59,926.89 = 21,222.62/x
3. Step 3: Cross multiply
   39,947.48x = 59,926.89 × 21,222.62
4. Step 4: Simplify right side
   39,947.48x = 1,271,805,614.25
5. Step 5: Solve for x
   x = 1,271,805,614.25/39,947.48
6. Step 6: Final answer
   x = 31,836.94