Finding the Fourth Proportional to 139,542,870.96, 209,333,455.92 and 47,401,871.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,542,870.96 : 209,333,455.92 = 47,401,871.76 : x
2. Step 2: Convert to fraction form
   139,542,870.96/209,333,455.92 = 47,401,871.76/x
3. Step 3: Cross multiply
   139,542,870.96x = 209,333,455.92 × 47,401,871.76
4. Step 4: Simplify right side
   139,542,870.96x = 9,922,797,632,597,452
5. Step 5: Solve for x
   x = 9,922,797,632,597,452/139,542,870.96
6. Step 6: Final answer
   x = 71,109,312.60