Finding the Fourth Proportional to 139,656.58, 209,485.32 and 34,475.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,656.58 : 209,485.32 = 34,475.56 : x
2. Step 2: Convert to fraction form
   139,656.58/209,485.32 = 34,475.56/x
3. Step 3: Cross multiply
   139,656.58x = 209,485.32 × 34,475.56
4. Step 4: Simplify right side
   139,656.58x = 7,222,123,718.78
5. Step 5: Solve for x
   x = 7,222,123,718.78/139,656.58
6. Step 6: Final answer
   x = 51,713.45