Finding the Fourth Proportional to 139,186.10, 208,777.33 and 34,005.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,186.10 : 208,777.33 = 34,005.98 : x
2. Step 2: Convert to fraction form
   139,186.10/208,777.33 = 34,005.98/x
3. Step 3: Cross multiply
   139,186.10x = 208,777.33 × 34,005.98
4. Step 4: Simplify right side
   139,186.10x = 7,099,677,708.43
5. Step 5: Solve for x
   x = 7,099,677,708.43/139,186.10
6. Step 6: Final answer
   x = 51,008.53