Finding the Fourth Proportional to 222,890.50, 307,588.89 and 127,399.25

Step by Step Solution

1. Step 1: Write the proportion equation
   222,890.50 : 307,588.89 = 127,399.25 : x
2. Step 2: Convert to fraction form
   222,890.50/307,588.89 = 127,399.25/x
3. Step 3: Cross multiply
   222,890.50x = 307,588.89 × 127,399.25
4. Step 4: Simplify right side
   222,890.50x = 39,186,592,335.93
5. Step 5: Solve for x
   x = 39,186,592,335.93/222,890.50
6. Step 6: Final answer
   x = 175,810.96