Finding the Fourth Proportional to 141,856.02, 195,762.60 and 78,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   141,856.02 : 195,762.60 = 78,196.10 : x
2. Step 2: Convert to fraction form
   141,856.02/195,762.60 = 78,196.10/x
3. Step 3: Cross multiply
   141,856.02x = 195,762.60 × 78,196.10
4. Step 4: Simplify right side
   141,856.02x = 15,307,870,867.05
5. Step 5: Solve for x
   x = 15,307,870,867.05/141,856.02
6. Step 6: Final answer
   x = 107,911.32