Finding the Fourth Proportional to 8,913.56, 12,302.06 and 5,137.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,913.56 : 12,302.06 = 5,137.29 : x
2. Step 2: Convert to fraction form
   8,913.56/12,302.06 = 5,137.29/x
3. Step 3: Cross multiply
   8,913.56x = 12,302.06 × 5,137.29
4. Step 4: Simplify right side
   8,913.56x = 63,199,188.31
5. Step 5: Solve for x
   x = 63,199,188.31/8,913.56
6. Step 6: Final answer
   x = 7,090.23