Finding the Fourth Proportional to 91,303.69, 126,003.95 and 51,018.43

Step by Step Solution

1. Step 1: Write the proportion equation
   91,303.69 : 126,003.95 = 51,018.43 : x
2. Step 2: Convert to fraction form
   91,303.69/126,003.95 = 51,018.43/x
3. Step 3: Cross multiply
   91,303.69x = 126,003.95 × 51,018.43
4. Step 4: Simplify right side
   91,303.69x = 6,428,523,200.32
5. Step 5: Solve for x
   x = 6,428,523,200.32/91,303.69
6. Step 6: Final answer
   x = 70,408.15