Finding the Fourth Proportional to 236,329.99, 326,139.27 and 128,900.02

Step by Step Solution

1. Step 1: Write the proportion equation
   236,329.99 : 326,139.27 = 128,900.02 : x
2. Step 2: Convert to fraction form
   236,329.99/326,139.27 = 128,900.02/x
3. Step 3: Cross multiply
   236,329.99x = 326,139.27 × 128,900.02
4. Step 4: Simplify right side
   236,329.99x = 42,039,356,150.59
5. Step 5: Solve for x
   x = 42,039,356,150.59/236,329.99
6. Step 6: Final answer
   x = 177,884.14