Finding the Fourth Proportional to 139,233.53, 208,816.82 and 64,281.67

Step by Step Solution

1. Step 1: Write the proportion equation
   139,233.53 : 208,816.82 = 64,281.67 : x
2. Step 2: Convert to fraction form
   139,233.53/208,816.82 = 64,281.67/x
3. Step 3: Cross multiply
   139,233.53x = 208,816.82 × 64,281.67
4. Step 4: Simplify right side
   139,233.53x = 13,423,093,311.30
5. Step 5: Solve for x
   x = 13,423,093,311.30/139,233.53
6. Step 6: Final answer
   x = 96,407.04