Finding the Fourth Proportional to 33,777.72, 50,681.40 and 17,979

Step by Step Solution

1. Step 1: Write the proportion equation
   33,777.72 : 50,681.40 = 17,979 : x
2. Step 2: Convert to fraction form
   33,777.72/50,681.40 = 17,979/x
3. Step 3: Cross multiply
   33,777.72x = 50,681.40 × 17,979
4. Step 4: Simplify right side
   33,777.72x = 911,200,890.60
5. Step 5: Solve for x
   x = 911,200,890.60/33,777.72
6. Step 6: Final answer
   x = 26,976.39