Finding the Fourth Proportional to 172,951.35, 238,636.58 and 105,004.10

Step by Step Solution

1. Step 1: Write the proportion equation
   172,951.35 : 238,636.58 = 105,004.10 : x
2. Step 2: Convert to fraction form
   172,951.35/238,636.58 = 105,004.10/x
3. Step 3: Cross multiply
   172,951.35x = 238,636.58 × 105,004.10
4. Step 4: Simplify right side
   172,951.35x = 25,057,817,591.77
5. Step 5: Solve for x
   x = 25,057,817,591.77/172,951.35
6. Step 6: Final answer
   x = 144,883.62