Finding the Fourth Proportional to 43,164.18, 64,746.18 and 13,584.60

Step by Step Solution

1. Step 1: Write the proportion equation
   43,164.18 : 64,746.18 = 13,584.60 : x
2. Step 2: Convert to fraction form
   43,164.18/64,746.18 = 13,584.60/x
3. Step 3: Cross multiply
   43,164.18x = 64,746.18 × 13,584.60
4. Step 4: Simplify right side
   43,164.18x = 879,550,956.83
5. Step 5: Solve for x
   x = 879,550,956.83/43,164.18
6. Step 6: Final answer
   x = 20,376.87