Finding the Fourth Proportional to 45,123.32, 67,691.46 and 13,961

Step by Step Solution

1. Step 1: Write the proportion equation
   45,123.32 : 67,691.46 = 13,961 : x
2. Step 2: Convert to fraction form
   45,123.32/67,691.46 = 13,961/x
3. Step 3: Cross multiply
   45,123.32x = 67,691.46 × 13,961
4. Step 4: Simplify right side
   45,123.32x = 945,040,473.06
5. Step 5: Solve for x
   x = 945,040,473.06/45,123.32
6. Step 6: Final answer
   x = 20,943.50