Finding the Fourth Proportional to 76,193.40, 105,111.86 and 49,344.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,193.40 : 105,111.86 = 49,344.72 : x
2. Step 2: Convert to fraction form
   76,193.40/105,111.86 = 49,344.72/x
3. Step 3: Cross multiply
   76,193.40x = 105,111.86 × 49,344.72
4. Step 4: Simplify right side
   76,193.40x = 5,186,715,300.38
5. Step 5: Solve for x
   x = 5,186,715,300.38/76,193.40
6. Step 6: Final answer
   x = 68,073.03