Finding the Fourth Proportional to 42,262.88, 58,309.62 and 28,118.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,262.88 : 58,309.62 = 28,118.12 : x
2. Step 2: Convert to fraction form
   42,262.88/58,309.62 = 28,118.12/x
3. Step 3: Cross multiply
   42,262.88x = 58,309.62 × 28,118.12
4. Step 4: Simplify right side
   42,262.88x = 1,639,556,892.31
5. Step 5: Solve for x
   x = 1,639,556,892.31/42,262.88
6. Step 6: Final answer
   x = 38,794.25