Finding the Fourth Proportional to 23,136.42, 31,928.34 and 12,526.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,136.42 : 31,928.34 = 12,526.10 : x
2. Step 2: Convert to fraction form
   23,136.42/31,928.34 = 12,526.10/x
3. Step 3: Cross multiply
   23,136.42x = 31,928.34 × 12,526.10
4. Step 4: Simplify right side
   23,136.42x = 399,937,579.67
5. Step 5: Solve for x
   x = 399,937,579.67/23,136.42
6. Step 6: Final answer
   x = 17,286.06