Finding the Fourth Proportional to 6,870.89, 10,300.57 and 4,784.74

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.89 : 10,300.57 = 4,784.74 : x
2. Step 2: Convert to fraction form
   6,870.89/10,300.57 = 4,784.74/x
3. Step 3: Cross multiply
   6,870.89x = 10,300.57 × 4,784.74
4. Step 4: Simplify right side
   6,870.89x = 49,285,511.59
5. Step 5: Solve for x
   x = 49,285,511.59/6,870.89
6. Step 6: Final answer
   x = 7,173.09