Finding the Fourth Proportional to 11,869.44, 16,374.89 and 7,385.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,869.44 : 16,374.89 = 7,385.42 : x
2. Step 2: Convert to fraction form
   11,869.44/16,374.89 = 7,385.42/x
3. Step 3: Cross multiply
   11,869.44x = 16,374.89 × 7,385.42
4. Step 4: Simplify right side
   11,869.44x = 120,935,321.30
5. Step 5: Solve for x
   x = 120,935,321.30/11,869.44
6. Step 6: Final answer
   x = 10,188.80