Finding the Fourth Proportional to 139,538.96, 209,306.72 and 34,358.84

Step by Step Solution

1. Step 1: Write the proportion equation
   139,538.96 : 209,306.72 = 34,358.84 : x
2. Step 2: Convert to fraction form
   139,538.96/209,306.72 = 34,358.84/x
3. Step 3: Cross multiply
   139,538.96x = 209,306.72 × 34,358.84
4. Step 4: Simplify right side
   139,538.96x = 7,191,536,103.40
5. Step 5: Solve for x
   x = 7,191,536,103.40/139,538.96
6. Step 6: Final answer
   x = 51,537.84