Finding the Fourth Proportional to 223,667.25, 308,669.34 and 128,192.41

Step by Step Solution

1. Step 1: Write the proportion equation
   223,667.25 : 308,669.34 = 128,192.41 : x
2. Step 2: Convert to fraction form
   223,667.25/308,669.34 = 128,192.41/x
3. Step 3: Cross multiply
   223,667.25x = 308,669.34 × 128,192.41
4. Step 4: Simplify right side
   223,667.25x = 39,569,066,587.71
5. Step 5: Solve for x
   x = 39,569,066,587.71/223,667.25
6. Step 6: Final answer
   x = 176,910.42