Finding the Fourth Proportional to 172,938.96, 259,267.56 and 116,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,938.96 : 259,267.56 = 116,071.50 : x
2. Step 2: Convert to fraction form
   172,938.96/259,267.56 = 116,071.50/x
3. Step 3: Cross multiply
   172,938.96x = 259,267.56 × 116,071.50
4. Step 4: Simplify right side
   172,938.96x = 30,093,574,590.54
5. Step 5: Solve for x
   x = 30,093,574,590.54/172,938.96
6. Step 6: Final answer
   x = 174,012.70