Finding the Fourth Proportional to 76,826.52, 105,982.91 and 51,339.14

Step by Step Solution

1. Step 1: Write the proportion equation
   76,826.52 : 105,982.91 = 51,339.14 : x
2. Step 2: Convert to fraction form
   76,826.52/105,982.91 = 51,339.14/x
3. Step 3: Cross multiply
   76,826.52x = 105,982.91 × 51,339.14
4. Step 4: Simplify right side
   76,826.52x = 5,441,070,667.49
5. Step 5: Solve for x
   x = 5,441,070,667.49/76,826.52
6. Step 6: Final answer
   x = 70,822.82