Finding the Fourth Proportional to 30,543.06, 42,149.57 and 19,926.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,543.06 : 42,149.57 = 19,926.42 : x
2. Step 2: Convert to fraction form
   30,543.06/42,149.57 = 19,926.42/x
3. Step 3: Cross multiply
   30,543.06x = 42,149.57 × 19,926.42
4. Step 4: Simplify right side
   30,543.06x = 839,890,034.64
5. Step 5: Solve for x
   x = 839,890,034.64/30,543.06
6. Step 6: Final answer
   x = 27,498.56