Finding the Fourth Proportional to 31,926.82, 47,878.71 and 13,460.26

Step by Step Solution

1. Step 1: Write the proportion equation
   31,926.82 : 47,878.71 = 13,460.26 : x
2. Step 2: Convert to fraction form
   31,926.82/47,878.71 = 13,460.26/x
3. Step 3: Cross multiply
   31,926.82x = 47,878.71 × 13,460.26
4. Step 4: Simplify right side
   31,926.82x = 644,459,885.06
5. Step 5: Solve for x
   x = 644,459,885.06/31,926.82
6. Step 6: Final answer
   x = 20,185.53