Finding the Fourth Proportional to 10,840.83, 16,264.53 and 5,146.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,840.83 : 16,264.53 = 5,146.17 : x
2. Step 2: Convert to fraction form
   10,840.83/16,264.53 = 5,146.17/x
3. Step 3: Cross multiply
   10,840.83x = 16,264.53 × 5,146.17
4. Step 4: Simplify right side
   10,840.83x = 83,699,956.06
5. Step 5: Solve for x
   x = 83,699,956.06/10,840.83
6. Step 6: Final answer
   x = 7,720.80