Finding the Fourth Proportional to 139,378,216.24, 209,053,701.78 and 42,334,766.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,378,216.24 : 209,053,701.78 = 42,334,766.56 : x
2. Step 2: Convert to fraction form
   139,378,216.24/209,053,701.78 = 42,334,766.56/x
3. Step 3: Cross multiply
   139,378,216.24x = 209,053,701.78 × 42,334,766.56
4. Step 4: Simplify right side
   139,378,216.24x = 8,850,239,663,360,157
5. Step 5: Solve for x
   x = 8,850,239,663,360,157/139,378,216.24
6. Step 6: Final answer
   x = 63,498,012.11