Finding the Fourth Proportional to 139,892.72, 209,663.51 and 110,193.26

Step by Step Solution

1. Step 1: Write the proportion equation
   139,892.72 : 209,663.51 = 110,193.26 : x
2. Step 2: Convert to fraction form
   139,892.72/209,663.51 = 110,193.26/x
3. Step 3: Cross multiply
   139,892.72x = 209,663.51 × 110,193.26
4. Step 4: Simplify right side
   139,892.72x = 23,103,505,669.94
5. Step 5: Solve for x
   x = 23,103,505,669.94/139,892.72
6. Step 6: Final answer
   x = 165,151.59