Finding the Fourth Proportional to 76,551.36, 105,640.25 and 42,559.71

Step by Step Solution

1. Step 1: Write the proportion equation
   76,551.36 : 105,640.25 = 42,559.71 : x
2. Step 2: Convert to fraction form
   76,551.36/105,640.25 = 42,559.71/x
3. Step 3: Cross multiply
   76,551.36x = 105,640.25 × 42,559.71
4. Step 4: Simplify right side
   76,551.36x = 4,496,018,191.53
5. Step 5: Solve for x
   x = 4,496,018,191.53/76,551.36
6. Step 6: Final answer
   x = 58,732.05