Finding the Fourth Proportional to 30,742.56, 42,359.76 and 24,780.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,742.56 : 42,359.76 = 24,780.96 : x
2. Step 2: Convert to fraction form
   30,742.56/42,359.76 = 24,780.96/x
3. Step 3: Cross multiply
   30,742.56x = 42,359.76 × 24,780.96
4. Step 4: Simplify right side
   30,742.56x = 1,049,715,518.17
5. Step 5: Solve for x
   x = 1,049,715,518.17/30,742.56
6. Step 6: Final answer
   x = 34,145.35