Finding the Fourth Proportional to 76,443.18, 105,541.55 and 49,662.01

Step by Step Solution

1. Step 1: Write the proportion equation
   76,443.18 : 105,541.55 = 49,662.01 : x
2. Step 2: Convert to fraction form
   76,443.18/105,541.55 = 49,662.01/x
3. Step 3: Cross multiply
   76,443.18x = 105,541.55 × 49,662.01
4. Step 4: Simplify right side
   76,443.18x = 5,241,405,511.52
5. Step 5: Solve for x
   x = 5,241,405,511.52/76,443.18
6. Step 6: Final answer
   x = 68,566.03