Finding the Fourth Proportional to 81,333.99, 112,310.96 and 51,169.59

Step by Step Solution

1. Step 1: Write the proportion equation
   81,333.99 : 112,310.96 = 51,169.59 : x
2. Step 2: Convert to fraction form
   81,333.99/112,310.96 = 51,169.59/x
3. Step 3: Cross multiply
   81,333.99x = 112,310.96 × 51,169.59
4. Step 4: Simplify right side
   81,333.99x = 5,746,905,519.86
5. Step 5: Solve for x
   x = 5,746,905,519.86/81,333.99
6. Step 6: Final answer
   x = 70,658.10