Finding the Fourth Proportional to 42,906.24, 64,368.72 and 17,947.44

Step by Step Solution

1. Step 1: Write the proportion equation
   42,906.24 : 64,368.72 = 17,947.44 : x
2. Step 2: Convert to fraction form
   42,906.24/64,368.72 = 17,947.44/x
3. Step 3: Cross multiply
   42,906.24x = 64,368.72 × 17,947.44
4. Step 4: Simplify right side
   42,906.24x = 1,155,253,740.08
5. Step 5: Solve for x
   x = 1,155,253,740.08/42,906.24
6. Step 6: Final answer
   x = 26,925.08