Finding the Fourth Proportional to 8,403.89, 12,601.52 and 4,705.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,403.89 : 12,601.52 = 4,705.12 : x
2. Step 2: Convert to fraction form
   8,403.89/12,601.52 = 4,705.12/x
3. Step 3: Cross multiply
   8,403.89x = 12,601.52 × 4,705.12
4. Step 4: Simplify right side
   8,403.89x = 59,291,700.12
5. Step 5: Solve for x
   x = 59,291,700.12/8,403.89
6. Step 6: Final answer
   x = 7,055.27