Finding the Fourth Proportional to 158,025.84, 236,989.35 and 52,820.21

Step by Step Solution

1. Step 1: Write the proportion equation
   158,025.84 : 236,989.35 = 52,820.21 : x
2. Step 2: Convert to fraction form
   158,025.84/236,989.35 = 52,820.21/x
3. Step 3: Cross multiply
   158,025.84x = 236,989.35 × 52,820.21
4. Step 4: Simplify right side
   158,025.84x = 12,517,826,049.82
5. Step 5: Solve for x
   x = 12,517,826,049.82/158,025.84
6. Step 6: Final answer
   x = 79,213.79