Finding the Fourth Proportional to 76,777.52, 105,912.50 and 52,862.67

Step by Step Solution

1. Step 1: Write the proportion equation
   76,777.52 : 105,912.50 = 52,862.67 : x
2. Step 2: Convert to fraction form
   76,777.52/105,912.50 = 52,862.67/x
3. Step 3: Cross multiply
   76,777.52x = 105,912.50 × 52,862.67
4. Step 4: Simplify right side
   76,777.52x = 5,598,817,272.06
5. Step 5: Solve for x
   x = 5,598,817,272.06/76,777.52
6. Step 6: Final answer
   x = 72,922.62