Finding the Fourth Proportional to 12,747.90, 19,118.96 and 4,847.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,747.90 : 19,118.96 = 4,847.59 : x
2. Step 2: Convert to fraction form
   12,747.90/19,118.96 = 4,847.59/x
3. Step 3: Cross multiply
   12,747.90x = 19,118.96 × 4,847.59
4. Step 4: Simplify right side
   12,747.90x = 92,680,926.76
5. Step 5: Solve for x
   x = 92,680,926.76/12,747.90
6. Step 6: Final answer
   x = 7,270.29