Finding the Fourth Proportional to 30,667.55, 45,962.84 and 13,116.74

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.55 : 45,962.84 = 13,116.74 : x
2. Step 2: Convert to fraction form
   30,667.55/45,962.84 = 13,116.74/x
3. Step 3: Cross multiply
   30,667.55x = 45,962.84 × 13,116.74
4. Step 4: Simplify right side
   30,667.55x = 602,882,424.92
5. Step 5: Solve for x
   x = 602,882,424.92/30,667.55
6. Step 6: Final answer
   x = 19,658.65