Finding the Fourth Proportional to 43,300.94, 64,955.54 and 12,136.10

Step by Step Solution

1. Step 1: Write the proportion equation
   43,300.94 : 64,955.54 = 12,136.10 : x
2. Step 2: Convert to fraction form
   43,300.94/64,955.54 = 12,136.10/x
3. Step 3: Cross multiply
   43,300.94x = 64,955.54 × 12,136.10
4. Step 4: Simplify right side
   43,300.94x = 788,306,634.56
5. Step 5: Solve for x
   x = 788,306,634.56/43,300.94
6. Step 6: Final answer
   x = 18,205.30