Finding the Fourth Proportional to 42,984.78, 59,303.79 and 28,089.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,984.78 : 59,303.79 = 28,089.42 : x
2. Step 2: Convert to fraction form
   42,984.78/59,303.79 = 28,089.42/x
3. Step 3: Cross multiply
   42,984.78x = 59,303.79 × 28,089.42
4. Step 4: Simplify right side
   42,984.78x = 1,665,809,064.90
5. Step 5: Solve for x
   x = 1,665,809,064.90/42,984.78
6. Step 6: Final answer
   x = 38,753.46