Finding the Fourth Proportional to 139,624.85, 209,439.58 and 67,535.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,624.85 : 209,439.58 = 67,535.86 : x
2. Step 2: Convert to fraction form
   139,624.85/209,439.58 = 67,535.86/x
3. Step 3: Cross multiply
   139,624.85x = 209,439.58 × 67,535.86
4. Step 4: Simplify right side
   139,624.85x = 14,144,680,768.46
5. Step 5: Solve for x
   x = 14,144,680,768.46/139,624.85
6. Step 6: Final answer
   x = 101,304.90