Finding the Fourth Proportional to 11,699.83, 17,554.62 and 5,130.73

Step by Step Solution

1. Step 1: Write the proportion equation
   11,699.83 : 17,554.62 = 5,130.73 : x
2. Step 2: Convert to fraction form
   11,699.83/17,554.62 = 5,130.73/x
3. Step 3: Cross multiply
   11,699.83x = 17,554.62 × 5,130.73
4. Step 4: Simplify right side
   11,699.83x = 90,068,015.47
5. Step 5: Solve for x
   x = 90,068,015.47/11,699.83
6. Step 6: Final answer
   x = 7,698.23