Finding the Fourth Proportional to 8,849.60, 12,212.01 and 4,870.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,849.60 : 12,212.01 = 4,870.07 : x
2. Step 2: Convert to fraction form
   8,849.60/12,212.01 = 4,870.07/x
3. Step 3: Cross multiply
   8,849.60x = 12,212.01 × 4,870.07
4. Step 4: Simplify right side
   8,849.60x = 59,473,374.07
5. Step 5: Solve for x
   x = 59,473,374.07/8,849.60
6. Step 6: Final answer
   x = 6,720.46