Finding the Fourth Proportional to 91,309.52, 126,004.72 and 51,023.61

Step by Step Solution

1. Step 1: Write the proportion equation
   91,309.52 : 126,004.72 = 51,023.61 : x
2. Step 2: Convert to fraction form
   91,309.52/126,004.72 = 51,023.61/x
3. Step 3: Cross multiply
   91,309.52x = 126,004.72 × 51,023.61
4. Step 4: Simplify right side
   91,309.52x = 6,429,216,036.40
5. Step 5: Solve for x
   x = 6,429,216,036.40/91,309.52
6. Step 6: Final answer
   x = 70,411.24