Finding the Fourth Proportional to 236,123.02, 325,851.33 and 128,692.72

Step by Step Solution

1. Step 1: Write the proportion equation
   236,123.02 : 325,851.33 = 128,692.72 : x
2. Step 2: Convert to fraction form
   236,123.02/325,851.33 = 128,692.72/x
3. Step 3: Cross multiply
   236,123.02x = 325,851.33 × 128,692.72
4. Step 4: Simplify right side
   236,123.02x = 41,934,693,973.32
5. Step 5: Solve for x
   x = 41,934,693,973.32/236,123.02
6. Step 6: Final answer
   x = 177,596.81