Finding the Fourth Proportional to 12,200.15, 18,301.59 and 4,803.63

Step by Step Solution

1. Step 1: Write the proportion equation
   12,200.15 : 18,301.59 = 4,803.63 : x
2. Step 2: Convert to fraction form
   12,200.15/18,301.59 = 4,803.63/x
3. Step 3: Cross multiply
   12,200.15x = 18,301.59 × 4,803.63
4. Step 4: Simplify right side
   12,200.15x = 87,914,066.77
5. Step 5: Solve for x
   x = 87,914,066.77/12,200.15
6. Step 6: Final answer
   x = 7,205.99