Finding the Fourth Proportional to 90,797.24, 136,217.76 and 28,467.76

Step by Step Solution

1. Step 1: Write the proportion equation
   90,797.24 : 136,217.76 = 28,467.76 : x
2. Step 2: Convert to fraction form
   90,797.24/136,217.76 = 28,467.76/x
3. Step 3: Cross multiply
   90,797.24x = 136,217.76 × 28,467.76
4. Step 4: Simplify right side
   90,797.24x = 3,877,814,499.42
5. Step 5: Solve for x
   x = 3,877,814,499.42/90,797.24
6. Step 6: Final answer
   x = 42,708.51