Finding the Fourth Proportional to 43,144.86, 64,662.77 and 19,427.15

Step by Step Solution

1. Step 1: Write the proportion equation
   43,144.86 : 64,662.77 = 19,427.15 : x
2. Step 2: Convert to fraction form
   43,144.86/64,662.77 = 19,427.15/x
3. Step 3: Cross multiply
   43,144.86x = 64,662.77 × 19,427.15
4. Step 4: Simplify right side
   43,144.86x = 1,256,213,542.43
5. Step 5: Solve for x
   x = 1,256,213,542.43/43,144.86
6. Step 6: Final answer
   x = 29,116.18