Finding the Fourth Proportional to 42,801.36, 58,982.64 and 30,842.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,801.36 : 58,982.64 = 30,842.10 : x
2. Step 2: Convert to fraction form
   42,801.36/58,982.64 = 30,842.10/x
3. Step 3: Cross multiply
   42,801.36x = 58,982.64 × 30,842.10
4. Step 4: Simplify right side
   42,801.36x = 1,819,148,481.14
5. Step 5: Solve for x
   x = 1,819,148,481.14/42,801.36
6. Step 6: Final answer
   x = 42,502.12