Finding the Fourth Proportional to 139,830.63, 209,749.59 and 34,648.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,830.63 : 209,749.59 = 34,648.08 : x
2. Step 2: Convert to fraction form
   139,830.63/209,749.59 = 34,648.08/x
3. Step 3: Cross multiply
   139,830.63x = 209,749.59 × 34,648.08
4. Step 4: Simplify right side
   139,830.63x = 7,267,420,574.29
5. Step 5: Solve for x
   x = 7,267,420,574.29/139,830.63
6. Step 6: Final answer
   x = 51,973.02