Finding the Fourth Proportional to 42,747.78, 59,012.69 and 30,027.99

Step by Step Solution

1. Step 1: Write the proportion equation
   42,747.78 : 59,012.69 = 30,027.99 : x
2. Step 2: Convert to fraction form
   42,747.78/59,012.69 = 30,027.99/x
3. Step 3: Cross multiply
   42,747.78x = 59,012.69 × 30,027.99
4. Step 4: Simplify right side
   42,747.78x = 1,772,032,315.05
5. Step 5: Solve for x
   x = 1,772,032,315.05/42,747.78
6. Step 6: Final answer
   x = 41,453.20