Finding the Fourth Proportional to 201,645.72, 302,303.34 and 83,401.92

Step by Step Solution

1. Step 1: Write the proportion equation
   201,645.72 : 302,303.34 = 83,401.92 : x
2. Step 2: Convert to fraction form
   201,645.72/302,303.34 = 83,401.92/x
3. Step 3: Cross multiply
   201,645.72x = 302,303.34 × 83,401.92
4. Step 4: Simplify right side
   201,645.72x = 25,212,678,978.41
5. Step 5: Solve for x
   x = 25,212,678,978.41/201,645.72
6. Step 6: Final answer
   x = 125,034.54