Finding the Fourth Proportional to 35,719.31, 49,290.24 and 20,612.60

Step by Step Solution

1. Step 1: Write the proportion equation
   35,719.31 : 49,290.24 = 20,612.60 : x
2. Step 2: Convert to fraction form
   35,719.31/49,290.24 = 20,612.60/x
3. Step 3: Cross multiply
   35,719.31x = 49,290.24 × 20,612.60
4. Step 4: Simplify right side
   35,719.31x = 1,016,000,001.02
5. Step 5: Solve for x
   x = 1,016,000,001.02/35,719.31
6. Step 6: Final answer
   x = 28,444.00