Finding the Fourth Proportional to 139,188.47, 208,780.89 and 34,008.35

Step by Step Solution

1. Step 1: Write the proportion equation
   139,188.47 : 208,780.89 = 34,008.35 : x
2. Step 2: Convert to fraction form
   139,188.47/208,780.89 = 34,008.35/x
3. Step 3: Cross multiply
   139,188.47x = 208,780.89 × 34,008.35
4. Step 4: Simplify right side
   139,188.47x = 7,100,293,580.43
5. Step 5: Solve for x
   x = 7,100,293,580.43/139,188.47
6. Step 6: Final answer
   x = 51,012.08