Finding the Fourth Proportional to 73,861.96, 101,877.78 and 49,978.12

Step by Step Solution

1. Step 1: Write the proportion equation
   73,861.96 : 101,877.78 = 49,978.12 : x
2. Step 2: Convert to fraction form
   73,861.96/101,877.78 = 49,978.12/x
3. Step 3: Cross multiply
   73,861.96x = 101,877.78 × 49,978.12
4. Step 4: Simplify right side
   73,861.96x = 5,091,659,914.17
5. Step 5: Solve for x
   x = 5,091,659,914.17/73,861.96
6. Step 6: Final answer
   x = 68,934.81