Finding the Fourth Proportional to 150,826.82, 208,117.86 and 87,152.28

Step by Step Solution

1. Step 1: Write the proportion equation
   150,826.82 : 208,117.86 = 87,152.28 : x
2. Step 2: Convert to fraction form
   150,826.82/208,117.86 = 87,152.28/x
3. Step 3: Cross multiply
   150,826.82x = 208,117.86 × 87,152.28
4. Step 4: Simplify right side
   150,826.82x = 18,137,946,007.72
5. Step 5: Solve for x
   x = 18,137,946,007.72/150,826.82
6. Step 6: Final answer
   x = 120,256.77