Finding the Fourth Proportional to 9,803.89, 14,706.72 and 2,783.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.89 : 14,706.72 = 2,783.98 : x
2. Step 2: Convert to fraction form
   9,803.89/14,706.72 = 2,783.98/x
3. Step 3: Cross multiply
   9,803.89x = 14,706.72 × 2,783.98
4. Step 4: Simplify right side
   9,803.89x = 40,943,140.81
5. Step 5: Solve for x
   x = 40,943,140.81/9,803.89
6. Step 6: Final answer
   x = 4,176.21