Finding the Fourth Proportional to 35,404.32, 48,855.12 and 20,501.28

Step by Step Solution

1. Step 1: Write the proportion equation
   35,404.32 : 48,855.12 = 20,501.28 : x
2. Step 2: Convert to fraction form
   35,404.32/48,855.12 = 20,501.28/x
3. Step 3: Cross multiply
   35,404.32x = 48,855.12 × 20,501.28
4. Step 4: Simplify right side
   35,404.32x = 1,001,592,494.55
5. Step 5: Solve for x
   x = 1,001,592,494.55/35,404.32
6. Step 6: Final answer
   x = 28,290.12