Finding the Fourth Proportional to 119,123.55, 164,390.68 and 65,412.04

Step by Step Solution

1. Step 1: Write the proportion equation
   119,123.55 : 164,390.68 = 65,412.04 : x
2. Step 2: Convert to fraction form
   119,123.55/164,390.68 = 65,412.04/x
3. Step 3: Cross multiply
   119,123.55x = 164,390.68 × 65,412.04
4. Step 4: Simplify right side
   119,123.55x = 10,753,129,735.79
5. Step 5: Solve for x
   x = 10,753,129,735.79/119,123.55
6. Step 6: Final answer
   x = 90,268.71