Finding the Fourth Proportional to 223,233.01, 308,061.32 and 121,258.55

Step by Step Solution

1. Step 1: Write the proportion equation
   223,233.01 : 308,061.32 = 121,258.55 : x
2. Step 2: Convert to fraction form
   223,233.01/308,061.32 = 121,258.55/x
3. Step 3: Cross multiply
   223,233.01x = 308,061.32 × 121,258.55
4. Step 4: Simplify right side
   223,233.01x = 37,355,068,974.29
5. Step 5: Solve for x
   x = 37,355,068,974.29/223,233.01
6. Step 6: Final answer
   x = 167,336.67