Finding the Fourth Proportional to 67,241.52, 100,877.40 and 20,499.12

Step by Step Solution

1. Step 1: Write the proportion equation
   67,241.52 : 100,877.40 = 20,499.12 : x
2. Step 2: Convert to fraction form
   67,241.52/100,877.40 = 20,499.12/x
3. Step 3: Cross multiply
   67,241.52x = 100,877.40 × 20,499.12
4. Step 4: Simplify right side
   67,241.52x = 2,067,897,927.89
5. Step 5: Solve for x
   x = 2,067,897,927.89/67,241.52
6. Step 6: Final answer
   x = 30,753.29