Finding the Fourth Proportional to 76,824.01, 106,105.41 and 51,285.91

Step by Step Solution

1. Step 1: Write the proportion equation
   76,824.01 : 106,105.41 = 51,285.91 : x
2. Step 2: Convert to fraction form
   76,824.01/106,105.41 = 51,285.91/x
3. Step 3: Cross multiply
   76,824.01x = 106,105.41 × 51,285.91
4. Step 4: Simplify right side
   76,824.01x = 5,441,712,507.77
5. Step 5: Solve for x
   x = 5,441,712,507.77/76,824.01
6. Step 6: Final answer
   x = 70,833.49