Finding the Fourth Proportional to 139,473.32, 209,208.15 and 34,293.20

Step by Step Solution

1. Step 1: Write the proportion equation
   139,473.32 : 209,208.15 = 34,293.20 : x
2. Step 2: Convert to fraction form
   139,473.32/209,208.15 = 34,293.20/x
3. Step 3: Cross multiply
   139,473.32x = 209,208.15 × 34,293.20
4. Step 4: Simplify right side
   139,473.32x = 7,174,415,883.54
5. Step 5: Solve for x
   x = 7,174,415,883.54/139,473.32
6. Step 6: Final answer
   x = 51,439.34