Finding the Fourth Proportional to 9,810.63, 14,715.81 and 2,415.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,810.63 : 14,715.81 = 2,415.15 : x
2. Step 2: Convert to fraction form
   9,810.63/14,715.81 = 2,415.15/x
3. Step 3: Cross multiply
   9,810.63x = 14,715.81 × 2,415.15
4. Step 4: Simplify right side
   9,810.63x = 35,540,888.52
5. Step 5: Solve for x
   x = 35,540,888.52/9,810.63
6. Step 6: Final answer
   x = 3,622.69