Finding the Fourth Proportional to 49,389.14, 74,066.16 and 17,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,389.14 : 74,066.16 = 17,790.72 : x
2. Step 2: Convert to fraction form
   49,389.14/74,066.16 = 17,790.72/x
3. Step 3: Cross multiply
   49,389.14x = 74,066.16 × 17,790.72
4. Step 4: Simplify right side
   49,389.14x = 1,317,690,314.04
5. Step 5: Solve for x
   x = 1,317,690,314.04/49,389.14
6. Step 6: Final answer
   x = 26,679.76