Finding the Fourth Proportional to 342,009.37, 513,069.18 and 105,351.82

Step by Step Solution

1. Step 1: Write the proportion equation
   342,009.37 : 513,069.18 = 105,351.82 : x
2. Step 2: Convert to fraction form
   342,009.37/513,069.18 = 105,351.82/x
3. Step 3: Cross multiply
   342,009.37x = 513,069.18 × 105,351.82
4. Step 4: Simplify right side
   342,009.37x = 54,052,771,898.91
5. Step 5: Solve for x
   x = 54,052,771,898.91/342,009.37
6. Step 6: Final answer
   x = 158,044.71