Finding the Fourth Proportional to 76,978.72, 106,233.60 and 43,444

Step by Step Solution

1. Step 1: Write the proportion equation
   76,978.72 : 106,233.60 = 43,444 : x
2. Step 2: Convert to fraction form
   76,978.72/106,233.60 = 43,444/x
3. Step 3: Cross multiply
   76,978.72x = 106,233.60 × 43,444
4. Step 4: Simplify right side
   76,978.72x = 4,615,212,518.40
5. Step 5: Solve for x
   x = 4,615,212,518.40/76,978.72
6. Step 6: Final answer
   x = 59,954.39