Finding the Fourth Proportional to 143,086.93, 197,419.95 and 89,426.45

Step by Step Solution

1. Step 1: Write the proportion equation
   143,086.93 : 197,419.95 = 89,426.45 : x
2. Step 2: Convert to fraction form
   143,086.93/197,419.95 = 89,426.45/x
3. Step 3: Cross multiply
   143,086.93x = 197,419.95 × 89,426.45
4. Step 4: Simplify right side
   143,086.93x = 17,654,565,781.23
5. Step 5: Solve for x
   x = 17,654,565,781.23/143,086.93
6. Step 6: Final answer
   x = 123,383.50