Finding the Fourth Proportional to 139,186.47, 208,777.89 and 34,006.35

Step by Step Solution

1. Step 1: Write the proportion equation
   139,186.47 : 208,777.89 = 34,006.35 : x
2. Step 2: Convert to fraction form
   139,186.47/208,777.89 = 34,006.35/x
3. Step 3: Cross multiply
   139,186.47x = 208,777.89 × 34,006.35
4. Step 4: Simplify right side
   139,186.47x = 7,099,774,718.76
5. Step 5: Solve for x
   x = 7,099,774,718.76/139,186.47
6. Step 6: Final answer
   x = 51,009.09