Finding the Fourth Proportional to 13,124.72, 18,113.64 and 7,536.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,124.72 : 18,113.64 = 7,536.08 : x
2. Step 2: Convert to fraction form
   13,124.72/18,113.64 = 7,536.08/x
3. Step 3: Cross multiply
   13,124.72x = 18,113.64 × 7,536.08
4. Step 4: Simplify right side
   13,124.72x = 136,505,840.13
5. Step 5: Solve for x
   x = 136,505,840.13/13,124.72
6. Step 6: Final answer
   x = 10,400.67