Finding the Fourth Proportional to 30,743.34, 42,406.30 and 19,393.01

Step by Step Solution

1. Step 1: Write the proportion equation
   30,743.34 : 42,406.30 = 19,393.01 : x
2. Step 2: Convert to fraction form
   30,743.34/42,406.30 = 19,393.01/x
3. Step 3: Cross multiply
   30,743.34x = 42,406.30 × 19,393.01
4. Step 4: Simplify right side
   30,743.34x = 822,385,703.00
5. Step 5: Solve for x
   x = 822,385,703.00/30,743.34
6. Step 6: Final answer
   x = 26,750.05