Finding the Fourth Proportional to 42,906.76, 64,360.20 and 17,933.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,906.76 : 64,360.20 = 17,933.14 : x
2. Step 2: Convert to fraction form
   42,906.76/64,360.20 = 17,933.14/x
3. Step 3: Cross multiply
   42,906.76x = 64,360.20 × 17,933.14
4. Step 4: Simplify right side
   42,906.76x = 1,154,180,477.03
5. Step 5: Solve for x
   x = 1,154,180,477.03/42,906.76
6. Step 6: Final answer
   x = 26,899.74