Finding the Fourth Proportional to 8,003.51, 12,003.90 and 3,070.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,003.51 : 12,003.90 = 3,070.61 : x
2. Step 2: Convert to fraction form
   8,003.51/12,003.90 = 3,070.61/x
3. Step 3: Cross multiply
   8,003.51x = 12,003.90 × 3,070.61
4. Step 4: Simplify right side
   8,003.51x = 36,859,268.86
5. Step 5: Solve for x
   x = 36,859,268.86/8,003.51
6. Step 6: Final answer
   x = 4,605.39