Finding the Fourth Proportional to 11,870.40, 16,384.56 and 8,334.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,870.40 : 16,384.56 = 8,334.48 : x
2. Step 2: Convert to fraction form
   11,870.40/16,384.56 = 8,334.48/x
3. Step 3: Cross multiply
   11,870.40x = 16,384.56 × 8,334.48
4. Step 4: Simplify right side
   11,870.40x = 136,556,787.63
5. Step 5: Solve for x
   x = 136,556,787.63/11,870.40
6. Step 6: Final answer
   x = 11,503.98