Finding the Fourth Proportional to 11,800.83, 17,700.83 and 3,480.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,800.83 : 17,700.83 = 3,480.51 : x
2. Step 2: Convert to fraction form
   11,800.83/17,700.83 = 3,480.51/x
3. Step 3: Cross multiply
   11,800.83x = 17,700.83 × 3,480.51
4. Step 4: Simplify right side
   11,800.83x = 61,607,915.82
5. Step 5: Solve for x
   x = 61,607,915.82/11,800.83
6. Step 6: Final answer
   x = 5,220.64