Finding the Fourth Proportional to 9,816.86, 14,725.42 and 2,421.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,816.86 : 14,725.42 = 2,421.30 : x
2. Step 2: Convert to fraction form
   9,816.86/14,725.42 = 2,421.30/x
3. Step 3: Cross multiply
   9,816.86x = 14,725.42 × 2,421.30
4. Step 4: Simplify right side
   9,816.86x = 35,654,659.45
5. Step 5: Solve for x
   x = 35,654,659.45/9,816.86
6. Step 6: Final answer
   x = 3,631.98