Finding the Fourth Proportional to 57,196.08, 78,861.96 and 49,224.60

Step by Step Solution

1. Step 1: Write the proportion equation
   57,196.08 : 78,861.96 = 49,224.60 : x
2. Step 2: Convert to fraction form
   57,196.08/78,861.96 = 49,224.60/x
3. Step 3: Cross multiply
   57,196.08x = 78,861.96 × 49,224.60
4. Step 4: Simplify right side
   57,196.08x = 3,881,948,436.22
5. Step 5: Solve for x
   x = 3,881,948,436.22/57,196.08
6. Step 6: Final answer
   x = 67,870.88