Finding the Fourth Proportional to 139,968,012.35, 209,574,104.92 and 139,968,012.35

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,012.35 : 209,574,104.92 = 139,968,012.35 : x
2. Step 2: Convert to fraction form
   139,968,012.35/209,574,104.92 = 139,968,012.35/x
3. Step 3: Cross multiply
   139,968,012.35x = 209,574,104.92 × 139,968,012.35
4. Step 4: Simplify right side
   139,968,012.35x = 29,333,670,905,682,752
5. Step 5: Solve for x
   x = 29,333,670,905,682,752/139,968,012.35
6. Step 6: Final answer
   x = 209,574,104.92