Finding the Fourth Proportional to 139,477.57, 209,214.52 and 34,297.45

Step by Step Solution

1. Step 1: Write the proportion equation
   139,477.57 : 209,214.52 = 34,297.45 : x
2. Step 2: Convert to fraction form
   139,477.57/209,214.52 = 34,297.45/x
3. Step 3: Cross multiply
   139,477.57x = 209,214.52 × 34,297.45
4. Step 4: Simplify right side
   139,477.57x = 7,175,524,538.97
5. Step 5: Solve for x
   x = 7,175,524,538.97/139,477.57
6. Step 6: Final answer
   x = 51,445.72