Finding the Fourth Proportional to 8,624.42, 12,936.72 and 4,726.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,624.42 : 12,936.72 = 4,726.70 : x
2. Step 2: Convert to fraction form
   8,624.42/12,936.72 = 4,726.70/x
3. Step 3: Cross multiply
   8,624.42x = 12,936.72 × 4,726.70
4. Step 4: Simplify right side
   8,624.42x = 61,147,994.42
5. Step 5: Solve for x
   x = 61,147,994.42/8,624.42
6. Step 6: Final answer
   x = 7,090.10