Finding the Fourth Proportional to 160,930.02, 222,083.55 and 89,310.09

Step by Step Solution

1. Step 1: Write the proportion equation
   160,930.02 : 222,083.55 = 89,310.09 : x
2. Step 2: Convert to fraction form
   160,930.02/222,083.55 = 89,310.09/x
3. Step 3: Cross multiply
   160,930.02x = 222,083.55 × 89,310.09
4. Step 4: Simplify right side
   160,930.02x = 19,834,301,838.02
5. Step 5: Solve for x
   x = 19,834,301,838.02/160,930.02
6. Step 6: Final answer
   x = 123,247.99