Finding the Fourth Proportional to 139,365,645.66, 209,048,800.86 and 42,322,083.12

Step by Step Solution

1. Step 1: Write the proportion equation
   139,365,645.66 : 209,048,800.86 = 42,322,083.12 : x
2. Step 2: Convert to fraction form
   139,365,645.66/209,048,800.86 = 42,322,083.12/x
3. Step 3: Cross multiply
   139,365,645.66x = 209,048,800.86 × 42,322,083.12
4. Step 4: Simplify right side
   139,365,645.66x = 8,847,380,726,133,248
5. Step 5: Solve for x
   x = 8,847,380,726,133,248/139,365,645.66
6. Step 6: Final answer
   x = 63,483,225.61