Finding the Fourth Proportional to 119,699.01, 165,196.27 and 89,431.79

Step by Step Solution

1. Step 1: Write the proportion equation
   119,699.01 : 165,196.27 = 89,431.79 : x
2. Step 2: Convert to fraction form
   119,699.01/165,196.27 = 89,431.79/x
3. Step 3: Cross multiply
   119,699.01x = 165,196.27 × 89,431.79
4. Step 4: Simplify right side
   119,699.01x = 14,773,798,127.42
5. Step 5: Solve for x
   x = 14,773,798,127.42/119,699.01
6. Step 6: Final answer
   x = 123,424.56