Finding the Fourth Proportional to 13,484.51, 18,608.71 and 7,516.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,484.51 : 18,608.71 = 7,516.56 : x
2. Step 2: Convert to fraction form
   13,484.51/18,608.71 = 7,516.56/x
3. Step 3: Cross multiply
   13,484.51x = 18,608.71 × 7,516.56
4. Step 4: Simplify right side
   13,484.51x = 139,873,392.19
5. Step 5: Solve for x
   x = 139,873,392.19/13,484.51
6. Step 6: Final answer
   x = 10,372.89