Finding the Fourth Proportional to 8,985.34, 13,484.16 and 3,141.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,985.34 : 13,484.16 = 3,141.96 : x
2. Step 2: Convert to fraction form
   8,985.34/13,484.16 = 3,141.96/x
3. Step 3: Cross multiply
   8,985.34x = 13,484.16 × 3,141.96
4. Step 4: Simplify right side
   8,985.34x = 42,366,691.35
5. Step 5: Solve for x
   x = 42,366,691.35/8,985.34
6. Step 6: Final answer
   x = 4,715.09