Finding the Fourth Proportional to 30,978.84, 46,468.50 and 7,605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,978.84 : 46,468.50 = 7,605.48 : x
2. Step 2: Convert to fraction form
   30,978.84/46,468.50 = 7,605.48/x
3. Step 3: Cross multiply
   30,978.84x = 46,468.50 × 7,605.48
4. Step 4: Simplify right side
   30,978.84x = 353,415,247.38
5. Step 5: Solve for x
   x = 353,415,247.38/30,978.84
6. Step 6: Final answer
   x = 11,408.28