Finding the Fourth Proportional to 139,337.87, 208,919.33 and 63,459.91

Step by Step Solution

1. Step 1: Write the proportion equation
   139,337.87 : 208,919.33 = 63,459.91 : x
2. Step 2: Convert to fraction form
   139,337.87/208,919.33 = 63,459.91/x
3. Step 3: Cross multiply
   139,337.87x = 208,919.33 × 63,459.91
4. Step 4: Simplify right side
   139,337.87x = 13,258,000,707.23
5. Step 5: Solve for x
   x = 13,258,000,707.23/139,337.87
6. Step 6: Final answer
   x = 95,150.02