Finding the Fourth Proportional to 139,061.13, 208,467.93 and 50,294.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,061.13 : 208,467.93 = 50,294.92 : x
2. Step 2: Convert to fraction form
   139,061.13/208,467.93 = 50,294.92/x
3. Step 3: Cross multiply
   139,061.13x = 208,467.93 × 50,294.92
4. Step 4: Simplify right side
   139,061.13x = 10,484,876,819.58
5. Step 5: Solve for x
   x = 10,484,876,819.58/139,061.13
6. Step 6: Final answer
   x = 75,397.61