Finding the Fourth Proportional to 30,588.41, 42,224.01 and 21,682.46

Step by Step Solution

1. Step 1: Write the proportion equation
   30,588.41 : 42,224.01 = 21,682.46 : x
2. Step 2: Convert to fraction form
   30,588.41/42,224.01 = 21,682.46/x
3. Step 3: Cross multiply
   30,588.41x = 42,224.01 × 21,682.46
4. Step 4: Simplify right side
   30,588.41x = 915,520,407.86
5. Step 5: Solve for x
   x = 915,520,407.86/30,588.41
6. Step 6: Final answer
   x = 29,930.30