Finding the Fourth Proportional to 42,749.15, 64,067.81 and 22,985.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,749.15 : 64,067.81 = 22,985.15 : x
2. Step 2: Convert to fraction form
   42,749.15/64,067.81 = 22,985.15/x
3. Step 3: Cross multiply
   42,749.15x = 64,067.81 × 22,985.15
4. Step 4: Simplify right side
   42,749.15x = 1,472,607,787.76
5. Step 5: Solve for x
   x = 1,472,607,787.76/42,749.15
6. Step 6: Final answer
   x = 34,447.65