Finding the Fourth Proportional to 172,341.16, 258,405.18 and 67,036.84

Step by Step Solution

1. Step 1: Write the proportion equation
   172,341.16 : 258,405.18 = 67,036.84 : x
2. Step 2: Convert to fraction form
   172,341.16/258,405.18 = 67,036.84/x
3. Step 3: Cross multiply
   172,341.16x = 258,405.18 × 67,036.84
4. Step 4: Simplify right side
   172,341.16x = 17,322,666,706.83
5. Step 5: Solve for x
   x = 17,322,666,706.83/172,341.16
6. Step 6: Final answer
   x = 100,513.81