Finding the Fourth Proportional to 42,959.07, 64,463.72 and 17,997.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,959.07 : 64,463.72 = 17,997.01 : x
2. Step 2: Convert to fraction form
   42,959.07/64,463.72 = 17,997.01/x
3. Step 3: Cross multiply
   42,959.07x = 64,463.72 × 17,997.01
4. Step 4: Simplify right side
   42,959.07x = 1,160,154,213.48
5. Step 5: Solve for x
   x = 1,160,154,213.48/42,959.07
6. Step 6: Final answer
   x = 27,006.04