Finding the Fourth Proportional to 78,196.02, 117,293.97 and 31,437.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,196.02 : 117,293.97 = 31,437.96 : x
2. Step 2: Convert to fraction form
   78,196.02/117,293.97 = 31,437.96/x
3. Step 3: Cross multiply
   78,196.02x = 117,293.97 × 31,437.96
4. Step 4: Simplify right side
   78,196.02x = 3,687,483,137.10
5. Step 5: Solve for x
   x = 3,687,483,137.10/78,196.02
6. Step 6: Final answer
   x = 47,156.92