Finding the Fourth Proportional to 78,196.36, 107,911.16 and 42,386.22

Step by Step Solution

1. Step 1: Write the proportion equation
   78,196.36 : 107,911.16 = 42,386.22 : x
2. Step 2: Convert to fraction form
   78,196.36/107,911.16 = 42,386.22/x
3. Step 3: Cross multiply
   78,196.36x = 107,911.16 × 42,386.22
4. Step 4: Simplify right side
   78,196.36x = 4,573,946,168.22
5. Step 5: Solve for x
   x = 4,573,946,168.22/78,196.36
6. Step 6: Final answer
   x = 58,493.08