Finding the Fourth Proportional to 11,948.80, 17,932.46 and 8,276.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,948.80 : 17,932.46 = 8,276.76 : x
2. Step 2: Convert to fraction form
   11,948.80/17,932.46 = 8,276.76/x
3. Step 3: Cross multiply
   11,948.80x = 17,932.46 × 8,276.76
4. Step 4: Simplify right side
   11,948.80x = 148,422,667.63
5. Step 5: Solve for x
   x = 148,422,667.63/11,948.80
6. Step 6: Final answer
   x = 12,421.55