Finding the Fourth Proportional to 236,667.74, 326,603.04 and 129,238.52

Step by Step Solution

1. Step 1: Write the proportion equation
   236,667.74 : 326,603.04 = 129,238.52 : x
2. Step 2: Convert to fraction form
   236,667.74/326,603.04 = 129,238.52/x
3. Step 3: Cross multiply
   236,667.74x = 326,603.04 × 129,238.52
4. Step 4: Simplify right side
   236,667.74x = 42,209,693,517.10
5. Step 5: Solve for x
   x = 42,209,693,517.10/236,667.74
6. Step 6: Final answer
   x = 178,350.01