Finding the Fourth Proportional to 158,401.76, 237,603.78 and 53,220.69

Step by Step Solution

1. Step 1: Write the proportion equation
   158,401.76 : 237,603.78 = 53,220.69 : x
2. Step 2: Convert to fraction form
   158,401.76/237,603.78 = 53,220.69/x
3. Step 3: Cross multiply
   158,401.76x = 237,603.78 × 53,220.69
4. Step 4: Simplify right side
   158,401.76x = 12,645,437,118.21
5. Step 5: Solve for x
   x = 12,645,437,118.21/158,401.76
6. Step 6: Final answer
   x = 79,831.42