Finding the Fourth Proportional to 22,763.13, 31,410.59 and 13,812.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,763.13 : 31,410.59 = 13,812.81 : x
2. Step 2: Convert to fraction form
   22,763.13/31,410.59 = 13,812.81/x
3. Step 3: Cross multiply
   22,763.13x = 31,410.59 × 13,812.81
4. Step 4: Simplify right side
   22,763.13x = 433,868,442.59
5. Step 5: Solve for x
   x = 433,868,442.59/22,763.13
6. Step 6: Final answer
   x = 19,060.14