Finding the Fourth Proportional to 91,760.94, 126,496.05 and 64,855.98

Step by Step Solution

1. Step 1: Write the proportion equation
   91,760.94 : 126,496.05 = 64,855.98 : x
2. Step 2: Convert to fraction form
   91,760.94/126,496.05 = 64,855.98/x
3. Step 3: Cross multiply
   91,760.94x = 126,496.05 × 64,855.98
4. Step 4: Simplify right side
   91,760.94x = 8,204,024,876.83
5. Step 5: Solve for x
   x = 8,204,024,876.83/91,760.94
6. Step 6: Final answer
   x = 89,406.51