Finding the Fourth Proportional to 57,196.50, 78,931.17 and 34,840.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,196.50 : 78,931.17 = 34,840.50 : x
2. Step 2: Convert to fraction form
   57,196.50/78,931.17 = 34,840.50/x
3. Step 3: Cross multiply
   57,196.50x = 78,931.17 × 34,840.50
4. Step 4: Simplify right side
   57,196.50x = 2,750,001,428.39
5. Step 5: Solve for x
   x = 2,750,001,428.39/57,196.50
6. Step 6: Final answer
   x = 48,079.89