Finding the Fourth Proportional to 57,196.14, 78,888.51 and 39,294.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,196.14 : 78,888.51 = 39,294.06 : x
2. Step 2: Convert to fraction form
   57,196.14/78,888.51 = 39,294.06/x
3. Step 3: Cross multiply
   57,196.14x = 78,888.51 × 39,294.06
4. Step 4: Simplify right side
   57,196.14x = 3,099,849,845.25
5. Step 5: Solve for x
   x = 3,099,849,845.25/57,196.14
6. Step 6: Final answer
   x = 54,196.84