Finding the Fourth Proportional to 10,487.56, 14,488.74 and 7,830.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.56 : 14,488.74 = 7,830.37 : x
2. Step 2: Convert to fraction form
   10,487.56/14,488.74 = 7,830.37/x
3. Step 3: Cross multiply
   10,487.56x = 14,488.74 × 7,830.37
4. Step 4: Simplify right side
   10,487.56x = 113,452,195.03
5. Step 5: Solve for x
   x = 113,452,195.03/10,487.56
6. Step 6: Final answer
   x = 10,817.79