Finding the Fourth Proportional to 139,192.24, 208,788.30 and 50,445.58

Step by Step Solution

1. Step 1: Write the proportion equation
   139,192.24 : 208,788.30 = 50,445.58 : x
2. Step 2: Convert to fraction form
   139,192.24/208,788.30 = 50,445.58/x
3. Step 3: Cross multiply
   139,192.24x = 208,788.30 × 50,445.58
4. Step 4: Simplify right side
   139,192.24x = 10,532,446,890.71
5. Step 5: Solve for x
   x = 10,532,446,890.71/139,192.24
6. Step 6: Final answer
   x = 75,668.35