Finding the Fourth Proportional to 8,516.51, 12,776.59 and 3,588.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,516.51 : 12,776.59 = 3,588.47 : x
2. Step 2: Convert to fraction form
   8,516.51/12,776.59 = 3,588.47/x
3. Step 3: Cross multiply
   8,516.51x = 12,776.59 × 3,588.47
4. Step 4: Simplify right side
   8,516.51x = 45,848,446.34
5. Step 5: Solve for x
   x = 45,848,446.34/8,516.51
6. Step 6: Final answer
   x = 5,383.48