Finding the Fourth Proportional to 76,275.91, 105,144.09 and 53,551.15

Step by Step Solution

1. Step 1: Write the proportion equation
   76,275.91 : 105,144.09 = 53,551.15 : x
2. Step 2: Convert to fraction form
   76,275.91/105,144.09 = 53,551.15/x
3. Step 3: Cross multiply
   76,275.91x = 105,144.09 × 53,551.15
4. Step 4: Simplify right side
   76,275.91x = 5,630,586,935.20
5. Step 5: Solve for x
   x = 5,630,586,935.20/76,275.91
6. Step 6: Final answer
   x = 73,818.68