Finding the Fourth Proportional to 30,632.34, 42,271.56 and 18,715.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,632.34 : 42,271.56 = 18,715.62 : x
2. Step 2: Convert to fraction form
   30,632.34/42,271.56 = 18,715.62/x
3. Step 3: Cross multiply
   30,632.34x = 42,271.56 × 18,715.62
4. Step 4: Simplify right side
   30,632.34x = 791,138,453.77
5. Step 5: Solve for x
   x = 791,138,453.77/30,632.34
6. Step 6: Final answer
   x = 25,826.90