Finding the Fourth Proportional to 34,209.60, 47,188.72 and 20,774.04

Step by Step Solution

1. Step 1: Write the proportion equation
   34,209.60 : 47,188.72 = 20,774.04 : x
2. Step 2: Convert to fraction form
   34,209.60/47,188.72 = 20,774.04/x
3. Step 3: Cross multiply
   34,209.60x = 47,188.72 × 20,774.04
4. Step 4: Simplify right side
   34,209.60x = 980,300,356.83
5. Step 5: Solve for x
   x = 980,300,356.83/34,209.60
6. Step 6: Final answer
   x = 28,655.71