Finding the Fourth Proportional to 416,993,196.42, 625,526,147.43 and 136,790,098.52

Step by Step Solution

1. Step 1: Write the proportion equation
   416,993,196.42 : 625,526,147.43 = 136,790,098.52 : x
2. Step 2: Convert to fraction form
   416,993,196.42/625,526,147.43 = 136,790,098.52/x
3. Step 3: Cross multiply
   416,993,196.42x = 625,526,147.43 × 136,790,098.52
4. Step 4: Simplify right side
   416,993,196.42x = 85,565,783,330,658,096
5. Step 5: Solve for x
   x = 85,565,783,330,658,096/416,993,196.42
6. Step 6: Final answer
   x = 205,197,072.91