Finding the Fourth Proportional to 30,814.36, 42,522.82 and 19,490.04

Step by Step Solution

1. Step 1: Write the proportion equation
   30,814.36 : 42,522.82 = 19,490.04 : x
2. Step 2: Convert to fraction form
   30,814.36/42,522.82 = 19,490.04/x
3. Step 3: Cross multiply
   30,814.36x = 42,522.82 × 19,490.04
4. Step 4: Simplify right side
   30,814.36x = 828,771,462.71
5. Step 5: Solve for x
   x = 828,771,462.71/30,814.36
6. Step 6: Final answer
   x = 26,895.62