Finding the Fourth Proportional to 76,211.86, 105,137.42 and 49,363

Step by Step Solution

1. Step 1: Write the proportion equation
   76,211.86 : 105,137.42 = 49,363 : x
2. Step 2: Convert to fraction form
   76,211.86/105,137.42 = 49,363/x
3. Step 3: Cross multiply
   76,211.86x = 105,137.42 × 49,363
4. Step 4: Simplify right side
   76,211.86x = 5,189,898,463.46
5. Step 5: Solve for x
   x = 5,189,898,463.46/76,211.86
6. Step 6: Final answer
   x = 68,098.30