Finding the Fourth Proportional to 139,074.36, 208,687.23 and 59,099.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,074.36 : 208,687.23 = 59,099.82 : x
2. Step 2: Convert to fraction form
   139,074.36/208,687.23 = 59,099.82/x
3. Step 3: Cross multiply
   139,074.36x = 208,687.23 × 59,099.82
4. Step 4: Simplify right side
   139,074.36x = 12,333,377,729.30
5. Step 5: Solve for x
   x = 12,333,377,729.30/139,074.36
6. Step 6: Final answer
   x = 88,681.89