Finding the Fourth Proportional to 141,669, 195,498.63 and 78,005.16

Step by Step Solution

1. Step 1: Write the proportion equation
   141,669 : 195,498.63 = 78,005.16 : x
2. Step 2: Convert to fraction form
   141,669/195,498.63 = 78,005.16/x
3. Step 3: Cross multiply
   141,669x = 195,498.63 × 78,005.16
4. Step 4: Simplify right side
   141,669x = 15,249,901,912.93
5. Step 5: Solve for x
   x = 15,249,901,912.93/141,669
6. Step 6: Final answer
   x = 107,644.59