Finding the Fourth Proportional to 13,090.50, 18,064.89 and 7,501.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,090.50 : 18,064.89 = 7,501.50 : x
2. Step 2: Convert to fraction form
   13,090.50/18,064.89 = 7,501.50/x
3. Step 3: Cross multiply
   13,090.50x = 18,064.89 × 7,501.50
4. Step 4: Simplify right side
   13,090.50x = 135,513,772.34
5. Step 5: Solve for x
   x = 135,513,772.34/13,090.50
6. Step 6: Final answer
   x = 10,352.07