Finding the Fourth Proportional to 11,113.41, 16,674.78 and 4,870.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,113.41 : 16,674.78 = 4,870.20 : x
2. Step 2: Convert to fraction form
   11,113.41/16,674.78 = 4,870.20/x
3. Step 3: Cross multiply
   11,113.41x = 16,674.78 × 4,870.20
4. Step 4: Simplify right side
   11,113.41x = 81,209,513.56
5. Step 5: Solve for x
   x = 81,209,513.56/11,113.41
6. Step 6: Final answer
   x = 7,307.34