Finding the Fourth Proportional to 42,959.67, 64,464.59 and 17,997.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,959.67 : 64,464.59 = 17,997.63 : x
2. Step 2: Convert to fraction form
   42,959.67/64,464.59 = 17,997.63/x
3. Step 3: Cross multiply
   42,959.67x = 64,464.59 × 17,997.63
4. Step 4: Simplify right side
   42,959.67x = 1,160,209,642.17
5. Step 5: Solve for x
   x = 1,160,209,642.17/42,959.67
6. Step 6: Final answer
   x = 27,006.95