Finding the Fourth Proportional to 141,489, 195,282.55 and 81,100.12

Step by Step Solution

1. Step 1: Write the proportion equation
   141,489 : 195,282.55 = 81,100.12 : x
2. Step 2: Convert to fraction form
   141,489/195,282.55 = 81,100.12/x
3. Step 3: Cross multiply
   141,489x = 195,282.55 × 81,100.12
4. Step 4: Simplify right side
   141,489x = 15,837,438,238.91
5. Step 5: Solve for x
   x = 15,837,438,238.91/141,489
6. Step 6: Final answer
   x = 111,934.06