Finding the Fourth Proportional to 9,907.72, 14,859.19 and 2,885.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.72 : 14,859.19 = 2,885.83 : x
2. Step 2: Convert to fraction form
   9,907.72/14,859.19 = 2,885.83/x
3. Step 3: Cross multiply
   9,907.72x = 14,859.19 × 2,885.83
4. Step 4: Simplify right side
   9,907.72x = 42,881,096.28
5. Step 5: Solve for x
   x = 42,881,096.28/9,907.72
6. Step 6: Final answer
   x = 4,328.05