Finding the Fourth Proportional to 43,100.56, 64,650.72 and 13,518.36

Step by Step Solution

1. Step 1: Write the proportion equation
   43,100.56 : 64,650.72 = 13,518.36 : x
2. Step 2: Convert to fraction form
   43,100.56/64,650.72 = 13,518.36/x
3. Step 3: Cross multiply
   43,100.56x = 64,650.72 × 13,518.36
4. Step 4: Simplify right side
   43,100.56x = 873,971,707.22
5. Step 5: Solve for x
   x = 873,971,707.22/43,100.56
6. Step 6: Final answer
   x = 20,277.50