Finding the Fourth Proportional to 139,517.02, 209,276.34 and 34,335.28

Step by Step Solution

1. Step 1: Write the proportion equation
   139,517.02 : 209,276.34 = 34,335.28 : x
2. Step 2: Convert to fraction form
   139,517.02/209,276.34 = 34,335.28/x
3. Step 3: Cross multiply
   139,517.02x = 209,276.34 × 34,335.28
4. Step 4: Simplify right side
   139,517.02x = 7,185,561,731.28
5. Step 5: Solve for x
   x = 7,185,561,731.28/139,517.02
6. Step 6: Final answer
   x = 51,503.12