Finding the Fourth Proportional to 31,926.32, 47,877.96 and 13,459.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,926.32 : 47,877.96 = 13,459.76 : x
2. Step 2: Convert to fraction form
   31,926.32/47,877.96 = 13,459.76/x
3. Step 3: Cross multiply
   31,926.32x = 47,877.96 × 13,459.76
4. Step 4: Simplify right side
   31,926.32x = 644,425,850.89
5. Step 5: Solve for x
   x = 644,425,850.89/31,926.32
6. Step 6: Final answer
   x = 20,184.78