Finding the Fourth Proportional to 13,300.17, 19,926.73 and 12,510.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.17 : 19,926.73 = 12,510.03 : x
2. Step 2: Convert to fraction form
   13,300.17/19,926.73 = 12,510.03/x
3. Step 3: Cross multiply
   13,300.17x = 19,926.73 × 12,510.03
4. Step 4: Simplify right side
   13,300.17x = 249,283,990.10
5. Step 5: Solve for x
   x = 249,283,990.10/13,300.17
6. Step 6: Final answer
   x = 18,742.92