Finding the Fourth Proportional to 12,384.07, 17,091.19 and 7,077.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.07 : 17,091.19 = 7,077.86 : x
2. Step 2: Convert to fraction form
   12,384.07/17,091.19 = 7,077.86/x
3. Step 3: Cross multiply
   12,384.07x = 17,091.19 × 7,077.86
4. Step 4: Simplify right side
   12,384.07x = 120,969,050.05
5. Step 5: Solve for x
   x = 120,969,050.05/12,384.07
6. Step 6: Final answer
   x = 9,768.12