Finding the Fourth Proportional to 74,118.14, 111,143.58 and 31,978.29

Step by Step Solution

1. Step 1: Write the proportion equation
   74,118.14 : 111,143.58 = 31,978.29 : x
2. Step 2: Convert to fraction form
   74,118.14/111,143.58 = 31,978.29/x
3. Step 3: Cross multiply
   74,118.14x = 111,143.58 × 31,978.29
4. Step 4: Simplify right side
   74,118.14x = 3,554,181,632.88
5. Step 5: Solve for x
   x = 3,554,181,632.88/74,118.14
6. Step 6: Final answer
   x = 47,952.93