Finding the Fourth Proportional to 222,890.76, 307,583.91 and 123,432.57

Step by Step Solution

1. Step 1: Write the proportion equation
   222,890.76 : 307,583.91 = 123,432.57 : x
2. Step 2: Convert to fraction form
   222,890.76/307,583.91 = 123,432.57/x
3. Step 3: Cross multiply
   222,890.76x = 307,583.91 × 123,432.57
4. Step 4: Simplify right side
   222,890.76x = 37,965,872,501.95
5. Step 5: Solve for x
   x = 37,965,872,501.95/222,890.76
6. Step 6: Final answer
   x = 170,333.99