Finding the Fourth Proportional to 139,816,139.28, 193,028,944.98 and 124,303,302.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,816,139.28 : 193,028,944.98 = 124,303,302.42 : x
2. Step 2: Convert to fraction form
   139,816,139.28/193,028,944.98 = 124,303,302.42/x
3. Step 3: Cross multiply
   139,816,139.28x = 193,028,944.98 × 124,303,302.42
4. Step 4: Simplify right side
   139,816,139.28x = 23,994,135,323,662,480
5. Step 5: Solve for x
   x = 23,994,135,323,662,480/139,816,139.28
6. Step 6: Final answer
   x = 171,612,057.43