Finding the Fourth Proportional to 139,657.59, 209,486.82 and 34,476.57

Step by Step Solution

1. Step 1: Write the proportion equation
   139,657.59 : 209,486.82 = 34,476.57 : x
2. Step 2: Convert to fraction form
   139,657.59/209,486.82 = 34,476.57/x
3. Step 3: Cross multiply
   139,657.59x = 209,486.82 × 34,476.57
4. Step 4: Simplify right side
   139,657.59x = 7,222,387,013.81
5. Step 5: Solve for x
   x = 7,222,387,013.81/139,657.59
6. Step 6: Final answer
   x = 51,714.96