Finding the Fourth Proportional to 139,347.47, 209,025.16 and 34,166.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,347.47 : 209,025.16 = 34,166.34 : x
2. Step 2: Convert to fraction form
   139,347.47/209,025.16 = 34,166.34/x
3. Step 3: Cross multiply
   139,347.47x = 209,025.16 × 34,166.34
4. Step 4: Simplify right side
   139,347.47x = 7,141,624,599.70
5. Step 5: Solve for x
   x = 7,141,624,599.70/139,347.47
6. Step 6: Final answer
   x = 51,250.48