Finding the Fourth Proportional to 31,926.28, 47,895.70 and 13,196.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,926.28 : 47,895.70 = 13,196.25 : x
2. Step 2: Convert to fraction form
   31,926.28/47,895.70 = 13,196.25/x
3. Step 3: Cross multiply
   31,926.28x = 47,895.70 × 13,196.25
4. Step 4: Simplify right side
   31,926.28x = 632,043,325.67
5. Step 5: Solve for x
   x = 632,043,325.67/31,926.28
6. Step 6: Final answer
   x = 19,796.96