Finding the Fourth Proportional to 9,820.10, 14,708.55 and 9,820.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,820.10 : 14,708.55 = 9,820.10 : x
2. Step 2: Convert to fraction form
   9,820.10/14,708.55 = 9,820.10/x
3. Step 3: Cross multiply
   9,820.10x = 14,708.55 × 9,820.10
4. Step 4: Simplify right side
   9,820.10x = 144,439,431.86
5. Step 5: Solve for x
   x = 144,439,431.86/9,820.10
6. Step 6: Final answer
   x = 14,708.55