Finding the Fourth Proportional to 222,042.24, 306,407.04 and 137,166.72

Step by Step Solution

1. Step 1: Write the proportion equation
   222,042.24 : 306,407.04 = 137,166.72 : x
2. Step 2: Convert to fraction form
   222,042.24/306,407.04 = 137,166.72/x
3. Step 3: Cross multiply
   222,042.24x = 306,407.04 × 137,166.72
4. Step 4: Simplify right side
   222,042.24x = 42,028,848,661.71
5. Step 5: Solve for x
   x = 42,028,848,661.71/222,042.24
6. Step 6: Final answer
   x = 189,283.12