Finding the Fourth Proportional to 12,079.32, 16,665.91 and 7,830.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,079.32 : 16,665.91 = 7,830.46 : x
2. Step 2: Convert to fraction form
   12,079.32/16,665.91 = 7,830.46/x
3. Step 3: Cross multiply
   12,079.32x = 16,665.91 × 7,830.46
4. Step 4: Simplify right side
   12,079.32x = 130,501,741.62
5. Step 5: Solve for x
   x = 130,501,741.62/12,079.32
6. Step 6: Final answer
   x = 10,803.73