Finding the Fourth Proportional to 91,308.89, 126,005.99 and 51,022.69

Step by Step Solution

1. Step 1: Write the proportion equation
   91,308.89 : 126,005.99 = 51,022.69 : x
2. Step 2: Convert to fraction form
   91,308.89/126,005.99 = 51,022.69/x
3. Step 3: Cross multiply
   91,308.89x = 126,005.99 × 51,022.69
4. Step 4: Simplify right side
   91,308.89x = 6,429,164,659.64
5. Step 5: Solve for x
   x = 6,429,164,659.64/91,308.89
6. Step 6: Final answer
   x = 70,411.16