Finding the Fourth Proportional to 35,808.72, 53,715.96 and 12,116.04

Step by Step Solution

1. Step 1: Write the proportion equation
   35,808.72 : 53,715.96 = 12,116.04 : x
2. Step 2: Convert to fraction form
   35,808.72/53,715.96 = 12,116.04/x
3. Step 3: Cross multiply
   35,808.72x = 53,715.96 × 12,116.04
4. Step 4: Simplify right side
   35,808.72x = 650,824,720.00
5. Step 5: Solve for x
   x = 650,824,720.00/35,808.72
6. Step 6: Final answer
   x = 18,175.03