Finding the Fourth Proportional to 13,507.02, 18,637.83 and 7,538.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,507.02 : 18,637.83 = 7,538.13 : x
2. Step 2: Convert to fraction form
   13,507.02/18,637.83 = 7,538.13/x
3. Step 3: Cross multiply
   13,507.02x = 18,637.83 × 7,538.13
4. Step 4: Simplify right side
   13,507.02x = 140,494,385.46
5. Step 5: Solve for x
   x = 140,494,385.46/13,507.02
6. Step 6: Final answer
   x = 10,401.58