Finding the Fourth Proportional to 22,870.71, 34,308.63 and 13,007.34

Step by Step Solution

1. Step 1: Write the proportion equation
   22,870.71 : 34,308.63 = 13,007.34 : x
2. Step 2: Convert to fraction form
   22,870.71/34,308.63 = 13,007.34/x
3. Step 3: Cross multiply
   22,870.71x = 34,308.63 × 13,007.34
4. Step 4: Simplify right side
   22,870.71x = 446,264,015.34
5. Step 5: Solve for x
   x = 446,264,015.34/22,870.71
6. Step 6: Final answer
   x = 19,512.47