Finding the Fourth Proportional to 8,914.89, 12,303.85 and 5,137.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,914.89 : 12,303.85 = 5,137.33 : x
2. Step 2: Convert to fraction form
   8,914.89/12,303.85 = 5,137.33/x
3. Step 3: Cross multiply
   8,914.89x = 12,303.85 × 5,137.33
4. Step 4: Simplify right side
   8,914.89x = 63,208,937.72
5. Step 5: Solve for x
   x = 63,208,937.72/8,914.89
6. Step 6: Final answer
   x = 7,090.27