Finding the Fourth Proportional to 141,897.39, 195,819.72 and 78,237.45

Step by Step Solution

1. Step 1: Write the proportion equation
   141,897.39 : 195,819.72 = 78,237.45 : x
2. Step 2: Convert to fraction form
   141,897.39/195,819.72 = 78,237.45/x
3. Step 3: Cross multiply
   141,897.39x = 195,819.72 × 78,237.45
4. Step 4: Simplify right side
   141,897.39x = 15,320,435,552.51
5. Step 5: Solve for x
   x = 15,320,435,552.51/141,897.39
6. Step 6: Final answer
   x = 107,968.41