Finding the Fourth Proportional to 51,131.30, 76,699.55 and 16,071.30

Step by Step Solution

1. Step 1: Write the proportion equation
   51,131.30 : 76,699.55 = 16,071.30 : x
2. Step 2: Convert to fraction form
   51,131.30/76,699.55 = 16,071.30/x
3. Step 3: Cross multiply
   51,131.30x = 76,699.55 × 16,071.30
4. Step 4: Simplify right side
   51,131.30x = 1,232,661,477.92
5. Step 5: Solve for x
   x = 1,232,661,477.92/51,131.30
6. Step 6: Final answer
   x = 24,107.77