Finding the Fourth Proportional to 139,188.23, 208,780.52 and 34,008.11

Step by Step Solution

1. Step 1: Write the proportion equation
   139,188.23 : 208,780.52 = 34,008.11 : x
2. Step 2: Convert to fraction form
   139,188.23/208,780.52 = 34,008.11/x
3. Step 3: Cross multiply
   139,188.23x = 208,780.52 × 34,008.11
4. Step 4: Simplify right side
   139,188.23x = 7,100,230,719.98
5. Step 5: Solve for x
   x = 7,100,230,719.98/139,188.23
6. Step 6: Final answer
   x = 51,011.72