Finding the Fourth Proportional to 250,990,196.94, 346,374,883.06 and 139,485,737.42

Step by Step Solution

1. Step 1: Write the proportion equation
   250,990,196.94 : 346,374,883.06 = 139,485,737.42 : x
2. Step 2: Convert to fraction form
   250,990,196.94/346,374,883.06 = 139,485,737.42/x
3. Step 3: Cross multiply
   250,990,196.94x = 346,374,883.06 × 139,485,737.42
4. Step 4: Simplify right side
   250,990,196.94x = 48,314,355,987,390,360
5. Step 5: Solve for x
   x = 48,314,355,987,390,360/250,990,196.94
6. Step 6: Final answer
   x = 192,494,992.14