Finding the Fourth Proportional to 76,828.95, 106,065.72 and 53,083.26

Step by Step Solution

1. Step 1: Write the proportion equation
   76,828.95 : 106,065.72 = 53,083.26 : x
2. Step 2: Convert to fraction form
   76,828.95/106,065.72 = 53,083.26/x
3. Step 3: Cross multiply
   76,828.95x = 106,065.72 × 53,083.26
4. Step 4: Simplify right side
   76,828.95x = 5,630,314,191.85
5. Step 5: Solve for x
   x = 5,630,314,191.85/76,828.95
6. Step 6: Final answer
   x = 73,283.76