Finding the Fourth Proportional to 139,208.56, 208,835.46 and 43,123.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,208.56 : 208,835.46 = 43,123.34 : x
2. Step 2: Convert to fraction form
   139,208.56/208,835.46 = 43,123.34/x
3. Step 3: Cross multiply
   139,208.56x = 208,835.46 × 43,123.34
4. Step 4: Simplify right side
   139,208.56x = 9,005,681,285.84
5. Step 5: Solve for x
   x = 9,005,681,285.84/139,208.56
6. Step 6: Final answer
   x = 64,692.01