Finding the Fourth Proportional to 30,592.88, 42,213.06 and 18,020.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,592.88 : 42,213.06 = 18,020.12 : x
2. Step 2: Convert to fraction form
   30,592.88/42,213.06 = 18,020.12/x
3. Step 3: Cross multiply
   30,592.88x = 42,213.06 × 18,020.12
4. Step 4: Simplify right side
   30,592.88x = 760,684,406.77
5. Step 5: Solve for x
   x = 760,684,406.77/30,592.88
6. Step 6: Final answer
   x = 24,864.75