Finding the Fourth Proportional to 9,939.32, 14,900.34 and 3,787.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.32 : 14,900.34 = 3,787.64 : x
2. Step 2: Convert to fraction form
   9,939.32/14,900.34 = 3,787.64/x
3. Step 3: Cross multiply
   9,939.32x = 14,900.34 × 3,787.64
4. Step 4: Simplify right side
   9,939.32x = 56,437,123.80
5. Step 5: Solve for x
   x = 56,437,123.80/9,939.32
6. Step 6: Final answer
   x = 5,678.17