Finding the Fourth Proportional to 141,872.03, 195,784.72 and 78,212.10

Step by Step Solution

1. Step 1: Write the proportion equation
   141,872.03 : 195,784.72 = 78,212.10 : x
2. Step 2: Convert to fraction form
   141,872.03/195,784.72 = 78,212.10/x
3. Step 3: Cross multiply
   141,872.03x = 195,784.72 × 78,212.10
4. Step 4: Simplify right side
   141,872.03x = 15,312,734,637.77
5. Step 5: Solve for x
   x = 15,312,734,637.77/141,872.03
6. Step 6: Final answer
   x = 107,933.43