Finding the Fourth Proportional to 141,215.51, 195,003.99 and 105,343.25

Step by Step Solution

1. Step 1: Write the proportion equation
   141,215.51 : 195,003.99 = 105,343.25 : x
2. Step 2: Convert to fraction form
   141,215.51/195,003.99 = 105,343.25/x
3. Step 3: Cross multiply
   141,215.51x = 195,003.99 × 105,343.25
4. Step 4: Simplify right side
   141,215.51x = 20,542,352,567.83
5. Step 5: Solve for x
   x = 20,542,352,567.83/141,215.51
6. Step 6: Final answer
   x = 145,468.10