Finding the Fourth Proportional to 67,403.52, 101,124.72 and 20,663.28

Step by Step Solution

1. Step 1: Write the proportion equation
   67,403.52 : 101,124.72 = 20,663.28 : x
2. Step 2: Convert to fraction form
   67,403.52/101,124.72 = 20,663.28/x
3. Step 3: Cross multiply
   67,403.52x = 101,124.72 × 20,663.28
4. Step 4: Simplify right side
   67,403.52x = 2,089,568,404.28
5. Step 5: Solve for x
   x = 2,089,568,404.28/67,403.52
6. Step 6: Final answer
   x = 31,000.88