Finding the Fourth Proportional to 9,438.53, 14,152.12 and 3,888.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,438.53 : 14,152.12 = 3,888.61 : x
2. Step 2: Convert to fraction form
   9,438.53/14,152.12 = 3,888.61/x
3. Step 3: Cross multiply
   9,438.53x = 14,152.12 × 3,888.61
4. Step 4: Simplify right side
   9,438.53x = 55,032,030.25
5. Step 5: Solve for x
   x = 55,032,030.25/9,438.53
6. Step 6: Final answer
   x = 5,830.58