Finding the Fourth Proportional to 42,714.05, 64,072.09 and 13,132.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,714.05 : 64,072.09 = 13,132.16 : x
2. Step 2: Convert to fraction form
   42,714.05/64,072.09 = 13,132.16/x
3. Step 3: Cross multiply
   42,714.05x = 64,072.09 × 13,132.16
4. Step 4: Simplify right side
   42,714.05x = 841,404,617.05
5. Step 5: Solve for x
   x = 841,404,617.05/42,714.05
6. Step 6: Final answer
   x = 19,698.54