Finding the Fourth Proportional to 72,798.59, 109,120.12 and 51,958.91

Step by Step Solution

1. Step 1: Write the proportion equation
   72,798.59 : 109,120.12 = 51,958.91 : x
2. Step 2: Convert to fraction form
   72,798.59/109,120.12 = 51,958.91/x
3. Step 3: Cross multiply
   72,798.59x = 109,120.12 × 51,958.91
4. Step 4: Simplify right side
   72,798.59x = 5,669,762,494.27
5. Step 5: Solve for x
   x = 5,669,762,494.27/72,798.59
6. Step 6: Final answer
   x = 77,882.86