Finding the Fourth Proportional to 76,142.25, 105,123.96 and 48,929.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,142.25 : 105,123.96 = 48,929.37 : x
2. Step 2: Convert to fraction form
   76,142.25/105,123.96 = 48,929.37/x
3. Step 3: Cross multiply
   76,142.25x = 105,123.96 × 48,929.37
4. Step 4: Simplify right side
   76,142.25x = 5,143,649,134.71
5. Step 5: Solve for x
   x = 5,143,649,134.71/76,142.25
6. Step 6: Final answer
   x = 67,553.15