Finding the Fourth Proportional to 141,665.39, 195,498.45 and 78,003.37

Step by Step Solution

1. Step 1: Write the proportion equation
   141,665.39 : 195,498.45 = 78,003.37 : x
2. Step 2: Convert to fraction form
   141,665.39/195,498.45 = 78,003.37/x
3. Step 3: Cross multiply
   141,665.39x = 195,498.45 × 78,003.37
4. Step 4: Simplify right side
   141,665.39x = 15,249,537,929.78
5. Step 5: Solve for x
   x = 15,249,537,929.78/141,665.39
6. Step 6: Final answer
   x = 107,644.77