Finding the Fourth Proportional to 9,484.31, 13,094.51 and 8,487.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,484.31 : 13,094.51 = 8,487.87 : x
2. Step 2: Convert to fraction form
   9,484.31/13,094.51 = 8,487.87/x
3. Step 3: Cross multiply
   9,484.31x = 13,094.51 × 8,487.87
4. Step 4: Simplify right side
   9,484.31x = 111,144,456.15
5. Step 5: Solve for x
   x = 111,144,456.15/9,484.31
6. Step 6: Final answer
   x = 11,718.78