Finding the Fourth Proportional to 139,707.18, 209,558.73 and 34,526.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,707.18 : 209,558.73 = 34,526.16 : x
2. Step 2: Convert to fraction form
   139,707.18/209,558.73 = 34,526.16/x
3. Step 3: Cross multiply
   139,707.18x = 209,558.73 × 34,526.16
4. Step 4: Simplify right side
   139,707.18x = 7,235,258,241.38
5. Step 5: Solve for x
   x = 7,235,258,241.38/139,707.18
6. Step 6: Final answer
   x = 51,788.74