Finding the Fourth Proportional to 125,300.67, 188,111.38 and 107,644.29

Step by Step Solution

1. Step 1: Write the proportion equation
   125,300.67 : 188,111.38 = 107,644.29 : x
2. Step 2: Convert to fraction form
   125,300.67/188,111.38 = 107,644.29/x
3. Step 3: Cross multiply
   125,300.67x = 188,111.38 × 107,644.29
4. Step 4: Simplify right side
   125,300.67x = 20,249,115,941.02
5. Step 5: Solve for x
   x = 20,249,115,941.02/125,300.67
6. Step 6: Final answer
   x = 161,604.21