Finding the Fourth Proportional to 30,770.04, 42,462.72 and 19,459.74

Step by Step Solution

1. Step 1: Write the proportion equation
   30,770.04 : 42,462.72 = 19,459.74 : x
2. Step 2: Convert to fraction form
   30,770.04/42,462.72 = 19,459.74/x
3. Step 3: Cross multiply
   30,770.04x = 42,462.72 × 19,459.74
4. Step 4: Simplify right side
   30,770.04x = 826,313,490.89
5. Step 5: Solve for x
   x = 826,313,490.89/30,770.04
6. Step 6: Final answer
   x = 26,854.48