Finding the Fourth Proportional to 10,780.02, 14,870.99 and 6,300.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,780.02 : 14,870.99 = 6,300.85 : x
2. Step 2: Convert to fraction form
   10,780.02/14,870.99 = 6,300.85/x
3. Step 3: Cross multiply
   10,780.02x = 14,870.99 × 6,300.85
4. Step 4: Simplify right side
   10,780.02x = 93,699,824.41
5. Step 5: Solve for x
   x = 93,699,824.41/10,780.02
6. Step 6: Final answer
   x = 8,691.99