Finding the Fourth Proportional to 30,587.79, 42,213.27 and 16,976.52

Step by Step Solution

1. Step 1: Write the proportion equation
   30,587.79 : 42,213.27 = 16,976.52 : x
2. Step 2: Convert to fraction form
   30,587.79/42,213.27 = 16,976.52/x
3. Step 3: Cross multiply
   30,587.79x = 42,213.27 × 16,976.52
4. Step 4: Simplify right side
   30,587.79x = 716,634,422.42
5. Step 5: Solve for x
   x = 716,634,422.42/30,587.79
6. Step 6: Final answer
   x = 23,428.77