Finding the Fourth Proportional to 12,710.12, 19,051.50 and 5,310.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,710.12 : 19,051.50 = 5,310.77 : x
2. Step 2: Convert to fraction form
   12,710.12/19,051.50 = 5,310.77/x
3. Step 3: Cross multiply
   12,710.12x = 19,051.50 × 5,310.77
4. Step 4: Simplify right side
   12,710.12x = 101,178,059.31
5. Step 5: Solve for x
   x = 101,178,059.31/12,710.12
6. Step 6: Final answer
   x = 7,960.44