Finding the Fourth Proportional to 11,820.53, 16,312.38 and 7,104.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,820.53 : 16,312.38 = 7,104.89 : x
2. Step 2: Convert to fraction form
   11,820.53/16,312.38 = 7,104.89/x
3. Step 3: Cross multiply
   11,820.53x = 16,312.38 × 7,104.89
4. Step 4: Simplify right side
   11,820.53x = 115,897,665.54
5. Step 5: Solve for x
   x = 115,897,665.54/11,820.53
6. Step 6: Final answer
   x = 9,804.78