Finding the Fourth Proportional to 90,184, 135,355.84 and 42,857.28

Step by Step Solution

1. Step 1: Write the proportion equation
   90,184 : 135,355.84 = 42,857.28 : x
2. Step 2: Convert to fraction form
   90,184/135,355.84 = 42,857.28/x
3. Step 3: Cross multiply
   90,184x = 135,355.84 × 42,857.28
4. Step 4: Simplify right side
   90,184x = 5,800,983,134.52
5. Step 5: Solve for x
   x = 5,800,983,134.52/90,184
6. Step 6: Final answer
   x = 64,323.86