Finding the Fourth Proportional to 142,007.37, 195,971.37 and 78,349.47

Step by Step Solution

1. Step 1: Write the proportion equation
   142,007.37 : 195,971.37 = 78,349.47 : x
2. Step 2: Convert to fraction form
   142,007.37/195,971.37 = 78,349.47/x
3. Step 3: Cross multiply
   142,007.37x = 195,971.37 × 78,349.47
4. Step 4: Simplify right side
   142,007.37x = 15,354,251,603.07
5. Step 5: Solve for x
   x = 15,354,251,603.07/142,007.37
6. Step 6: Final answer
   x = 108,122.92