Finding the Fourth Proportional to 42,934.07, 64,389.48 and 17,969

Step by Step Solution

1. Step 1: Write the proportion equation
   42,934.07 : 64,389.48 = 17,969 : x
2. Step 2: Convert to fraction form
   42,934.07/64,389.48 = 17,969/x
3. Step 3: Cross multiply
   42,934.07x = 64,389.48 × 17,969
4. Step 4: Simplify right side
   42,934.07x = 1,157,014,566.12
5. Step 5: Solve for x
   x = 1,157,014,566.12/42,934.07
6. Step 6: Final answer
   x = 26,948.63