Finding the Fourth Proportional to 30,667.62, 42,322.14 and 17,240.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.62 : 42,322.14 = 17,240.10 : x
2. Step 2: Convert to fraction form
   30,667.62/42,322.14 = 17,240.10/x
3. Step 3: Cross multiply
   30,667.62x = 42,322.14 × 17,240.10
4. Step 4: Simplify right side
   30,667.62x = 729,637,925.81
5. Step 5: Solve for x
   x = 729,637,925.81/30,667.62
6. Step 6: Final answer
   x = 23,791.80