Finding the Fourth Proportional to 35,061.34, 48,390.88 and 20,720.56

Step by Step Solution

1. Step 1: Write the proportion equation
   35,061.34 : 48,390.88 = 20,720.56 : x
2. Step 2: Convert to fraction form
   35,061.34/48,390.88 = 20,720.56/x
3. Step 3: Cross multiply
   35,061.34x = 48,390.88 × 20,720.56
4. Step 4: Simplify right side
   35,061.34x = 1,002,686,132.49
5. Step 5: Solve for x
   x = 1,002,686,132.49/35,061.34
6. Step 6: Final answer
   x = 28,598.06