Finding the Fourth Proportional to 42,695.99, 64,042.61 and 19,322.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,695.99 : 64,042.61 = 19,322.42 : x
2. Step 2: Convert to fraction form
   42,695.99/64,042.61 = 19,322.42/x
3. Step 3: Cross multiply
   42,695.99x = 64,042.61 × 19,322.42
4. Step 4: Simplify right side
   42,695.99x = 1,237,458,208.32
5. Step 5: Solve for x
   x = 1,237,458,208.32/42,695.99
6. Step 6: Final answer
   x = 28,983.01