Finding the Fourth Proportional to 91,354.41, 126,069.57 and 51,069.87

Step by Step Solution

1. Step 1: Write the proportion equation
   91,354.41 : 126,069.57 = 51,069.87 : x
2. Step 2: Convert to fraction form
   91,354.41/126,069.57 = 51,069.87/x
3. Step 3: Cross multiply
   91,354.41x = 126,069.57 × 51,069.87
4. Step 4: Simplify right side
   91,354.41x = 6,438,356,550.86
5. Step 5: Solve for x
   x = 6,438,356,550.86/91,354.41
6. Step 6: Final answer
   x = 70,476.69