Finding the Fourth Proportional to 22,938.32, 34,412.88 and 7,142.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,938.32 : 34,412.88 = 7,142.56 : x
2. Step 2: Convert to fraction form
   22,938.32/34,412.88 = 7,142.56/x
3. Step 3: Cross multiply
   22,938.32x = 34,412.88 × 7,142.56
4. Step 4: Simplify right side
   22,938.32x = 245,796,060.17
5. Step 5: Solve for x
   x = 245,796,060.17/22,938.32
6. Step 6: Final answer
   x = 10,715.52