Finding the Fourth Proportional to 139,348.02, 209,093.52 and 68,269.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,348.02 : 209,093.52 = 68,269.32 : x
2. Step 2: Convert to fraction form
   139,348.02/209,093.52 = 68,269.32/x
3. Step 3: Cross multiply
   139,348.02x = 209,093.52 × 68,269.32
4. Step 4: Simplify right side
   139,348.02x = 14,274,672,426.81
5. Step 5: Solve for x
   x = 14,274,672,426.81/139,348.02
6. Step 6: Final answer
   x = 102,439.00