Finding the Fourth Proportional to 12,667.18, 18,995.24 and 4,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.18 : 18,995.24 = 4,870.50 : x
2. Step 2: Convert to fraction form
   12,667.18/18,995.24 = 4,870.50/x
3. Step 3: Cross multiply
   12,667.18x = 18,995.24 × 4,870.50
4. Step 4: Simplify right side
   12,667.18x = 92,516,316.42
5. Step 5: Solve for x
   x = 92,516,316.42/12,667.18
6. Step 6: Final answer
   x = 7,303.62