Finding the Fourth Proportional to 9,810.76, 14,716.00 and 2,415.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.76 : 14,716.00 = 2,415.28 : x
2. Step 2: Convert to fraction form
   9,810.76/14,716.00 = 2,415.28/x
3. Step 3: Cross multiply
   9,810.76x = 14,716.00 × 2,415.28
4. Step 4: Simplify right side
   9,810.76x = 35,543,174.82
5. Step 5: Solve for x
   x = 35,543,174.82/9,810.76
6. Step 6: Final answer
   x = 3,622.88