Finding the Fourth Proportional to 22,758.48, 34,147.64 and 7,978.04

Step by Step Solution

1. Step 1: Write the proportion equation
   22,758.48 : 34,147.64 = 7,978.04 : x
2. Step 2: Convert to fraction form
   22,758.48/34,147.64 = 7,978.04/x
3. Step 3: Cross multiply
   22,758.48x = 34,147.64 × 7,978.04
4. Step 4: Simplify right side
   22,758.48x = 272,431,237.83
5. Step 5: Solve for x
   x = 272,431,237.83/22,758.48
6. Step 6: Final answer
   x = 11,970.54