Finding the Fourth Proportional to 76,100.82, 105,011.98 and 51,521.63

Step by Step Solution

1. Step 1: Write the proportion equation
   76,100.82 : 105,011.98 = 51,521.63 : x
2. Step 2: Convert to fraction form
   76,100.82/105,011.98 = 51,521.63/x
3. Step 3: Cross multiply
   76,100.82x = 105,011.98 × 51,521.63
4. Step 4: Simplify right side
   76,100.82x = 5,410,388,121.52
5. Step 5: Solve for x
   x = 5,410,388,121.52/76,100.82
6. Step 6: Final answer
   x = 71,095.00