Finding the Fourth Proportional to 42,914.56, 64,349.88 and 17,947.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,914.56 : 64,349.88 = 17,947.78 : x
2. Step 2: Convert to fraction form
   42,914.56/64,349.88 = 17,947.78/x
3. Step 3: Cross multiply
   42,914.56x = 64,349.88 × 17,947.78
4. Step 4: Simplify right side
   42,914.56x = 1,154,937,489.27
5. Step 5: Solve for x
   x = 1,154,937,489.27/42,914.56
6. Step 6: Final answer
   x = 26,912.49