Finding the Fourth Proportional to 27,978.42, 42,025.95 and 23,604.42

Step by Step Solution

1. Step 1: Write the proportion equation
   27,978.42 : 42,025.95 = 23,604.42 : x
2. Step 2: Convert to fraction form
   27,978.42/42,025.95 = 23,604.42/x
3. Step 3: Cross multiply
   27,978.42x = 42,025.95 × 23,604.42
4. Step 4: Simplify right side
   27,978.42x = 991,998,174.70
5. Step 5: Solve for x
   x = 991,998,174.70/27,978.42
6. Step 6: Final answer
   x = 35,455.83