Finding the Fourth Proportional to 42,914.19, 64,380.57 and 17,613.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,914.19 : 64,380.57 = 17,613.78 : x
2. Step 2: Convert to fraction form
   42,914.19/64,380.57 = 17,613.78/x
3. Step 3: Cross multiply
   42,914.19x = 64,380.57 × 17,613.78
4. Step 4: Simplify right side
   42,914.19x = 1,133,985,196.25
5. Step 5: Solve for x
   x = 1,133,985,196.25/42,914.19
6. Step 6: Final answer
   x = 26,424.48