Finding the Fourth Proportional to 67,978.12, 101,977.53 and 34,680

Step by Step Solution

1. Step 1: Write the proportion equation
   67,978.12 : 101,977.53 = 34,680 : x
2. Step 2: Convert to fraction form
   67,978.12/101,977.53 = 34,680/x
3. Step 3: Cross multiply
   67,978.12x = 101,977.53 × 34,680
4. Step 4: Simplify right side
   67,978.12x = 3,536,580,740.40
5. Step 5: Solve for x
   x = 3,536,580,740.40/67,978.12
6. Step 6: Final answer
   x = 52,025.28