Finding the Fourth Proportional to 31,588.33, 47,393.78 and 13,568.99

Step by Step Solution

1. Step 1: Write the proportion equation
   31,588.33 : 47,393.78 = 13,568.99 : x
2. Step 2: Convert to fraction form
   31,588.33/47,393.78 = 13,568.99/x
3. Step 3: Cross multiply
   31,588.33x = 47,393.78 × 13,568.99
4. Step 4: Simplify right side
   31,588.33x = 643,085,659.04
5. Step 5: Solve for x
   x = 643,085,659.04/31,588.33
6. Step 6: Final answer
   x = 20,358.33