Finding the Fourth Proportional to 125,321.72, 188,031.82 and 55,151.84

Step by Step Solution

1. Step 1: Write the proportion equation
   125,321.72 : 188,031.82 = 55,151.84 : x
2. Step 2: Convert to fraction form
   125,321.72/188,031.82 = 55,151.84/x
3. Step 3: Cross multiply
   125,321.72x = 188,031.82 × 55,151.84
4. Step 4: Simplify right side
   125,321.72x = 10,370,300,851.55
5. Step 5: Solve for x
   x = 10,370,300,851.55/125,321.72
6. Step 6: Final answer
   x = 82,749.43