Finding the Fourth Proportional to 222,300.50, 306,774.71 and 121,698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   222,300.50 : 306,774.71 = 121,698.50 : x
2. Step 2: Convert to fraction form
   222,300.50/306,774.71 = 121,698.50/x
3. Step 3: Cross multiply
   222,300.50x = 306,774.71 × 121,698.50
4. Step 4: Simplify right side
   222,300.50x = 37,334,022,044.94
5. Step 5: Solve for x
   x = 37,334,022,044.94/222,300.50
6. Step 6: Final answer
   x = 167,943.94