Finding the Fourth Proportional to 76,553.72, 105,646.83 and 42,571.84

Step by Step Solution

1. Step 1: Write the proportion equation
   76,553.72 : 105,646.83 = 42,571.84 : x
2. Step 2: Convert to fraction form
   76,553.72/105,646.83 = 42,571.84/x
3. Step 3: Cross multiply
   76,553.72x = 105,646.83 × 42,571.84
4. Step 4: Simplify right side
   76,553.72x = 4,497,579,943.27
5. Step 5: Solve for x
   x = 4,497,579,943.27/76,553.72
6. Step 6: Final answer
   x = 58,750.64