Finding the Fourth Proportional to 9,618.72, 14,429.58 and 4,072.11

Step by Step Solution

1. Step 1: Write the proportion equation
   9,618.72 : 14,429.58 = 4,072.11 : x
2. Step 2: Convert to fraction form
   9,618.72/14,429.58 = 4,072.11/x
3. Step 3: Cross multiply
   9,618.72x = 14,429.58 × 4,072.11
4. Step 4: Simplify right side
   9,618.72x = 58,758,837.01
5. Step 5: Solve for x
   x = 58,758,837.01/9,618.72
6. Step 6: Final answer
   x = 6,108.80