Finding the Fourth Proportional to 199,334,499.30, 298,942,766.55 and 78,096,176.10

Step by Step Solution

1. Step 1: Write the proportion equation
   199,334,499.30 : 298,942,766.55 = 78,096,176.10 : x
2. Step 2: Convert to fraction form
   199,334,499.30/298,942,766.55 = 78,096,176.10/x
3. Step 3: Cross multiply
   199,334,499.30x = 298,942,766.55 × 78,096,176.10
4. Step 4: Simplify right side
   199,334,499.30x = 23,346,286,940,309,988
5. Step 5: Solve for x
   x = 23,346,286,940,309,988/199,334,499.30
6. Step 6: Final answer
   x = 117,121,155.76