Finding the Fourth Proportional to 76,288.19, 114,284.69 and 42,906.83

Step by Step Solution

1. Step 1: Write the proportion equation
   76,288.19 : 114,284.69 = 42,906.83 : x
2. Step 2: Convert to fraction form
   76,288.19/114,284.69 = 42,906.83/x
3. Step 3: Cross multiply
   76,288.19x = 114,284.69 × 42,906.83
4. Step 4: Simplify right side
   76,288.19x = 4,903,593,550.90
5. Step 5: Solve for x
   x = 4,903,593,550.90/76,288.19
6. Step 6: Final answer
   x = 64,277.23