Finding the Fourth Proportional to 12,977.71, 17,909.27 and 7,527.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,977.71 : 17,909.27 = 7,527.83 : x
2. Step 2: Convert to fraction form
   12,977.71/17,909.27 = 7,527.83/x
3. Step 3: Cross multiply
   12,977.71x = 17,909.27 × 7,527.83
4. Step 4: Simplify right side
   12,977.71x = 134,817,939.98
5. Step 5: Solve for x
   x = 134,817,939.98/12,977.71
6. Step 6: Final answer
   x = 10,388.42