Finding the Fourth Proportional to 146,019.93, 201,487.55 and 89,419.29

Step by Step Solution

1. Step 1: Write the proportion equation
   146,019.93 : 201,487.55 = 89,419.29 : x
2. Step 2: Convert to fraction form
   146,019.93/201,487.55 = 89,419.29/x
3. Step 3: Cross multiply
   146,019.93x = 201,487.55 × 89,419.29
4. Step 4: Simplify right side
   146,019.93x = 18,016,873,217.74
5. Step 5: Solve for x
   x = 18,016,873,217.74/146,019.93
6. Step 6: Final answer
   x = 123,386.40