Finding the Fourth Proportional to 143,090.00, 197,464.92 and 89,406.12

Step by Step Solution

1. Step 1: Write the proportion equation
   143,090.00 : 197,464.92 = 89,406.12 : x
2. Step 2: Convert to fraction form
   143,090.00/197,464.92 = 89,406.12/x
3. Step 3: Cross multiply
   143,090.00x = 197,464.92 × 89,406.12
4. Step 4: Simplify right side
   143,090.00x = 17,654,572,333.31
5. Step 5: Solve for x
   x = 17,654,572,333.31/143,090.00
6. Step 6: Final answer
   x = 123,380.90