Finding the Fourth Proportional to 35,346.72, 48,782.88 and 20,442.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,346.72 : 48,782.88 = 20,442.72 : x
2. Step 2: Convert to fraction form
   35,346.72/48,782.88 = 20,442.72/x
3. Step 3: Cross multiply
   35,346.72x = 48,782.88 × 20,442.72
4. Step 4: Simplify right side
   35,346.72x = 997,254,756.63
5. Step 5: Solve for x
   x = 997,254,756.63/35,346.72
6. Step 6: Final answer
   x = 28,213.50