Finding the Fourth Proportional to 158,826.13, 219,180.30 and 87,210.72

Step by Step Solution

1. Step 1: Write the proportion equation
   158,826.13 : 219,180.30 = 87,210.72 : x
2. Step 2: Convert to fraction form
   158,826.13/219,180.30 = 87,210.72/x
3. Step 3: Cross multiply
   158,826.13x = 219,180.30 × 87,210.72
4. Step 4: Simplify right side
   158,826.13x = 19,114,871,445.78
5. Step 5: Solve for x
   x = 19,114,871,445.78/158,826.13
6. Step 6: Final answer
   x = 120,350.93