Finding the Fourth Proportional to 12,036.06, 18,056.88 and 4,643.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,036.06 : 18,056.88 = 4,643.10 : x
2. Step 2: Convert to fraction form
   12,036.06/18,056.88 = 4,643.10/x
3. Step 3: Cross multiply
   12,036.06x = 18,056.88 × 4,643.10
4. Step 4: Simplify right side
   12,036.06x = 83,839,899.53
5. Step 5: Solve for x
   x = 83,839,899.53/12,036.06
6. Step 6: Final answer
   x = 6,965.73