Finding the Fourth Proportional to 139,969,282.24, 193,157,729.76 and 78,089,630.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,969,282.24 : 193,157,729.76 = 78,089,630.32 : x
2. Step 2: Convert to fraction form
   139,969,282.24/193,157,729.76 = 78,089,630.32/x
3. Step 3: Cross multiply
   139,969,282.24x = 193,157,729.76 × 78,089,630.32
4. Step 4: Simplify right side
   139,969,282.24x = 15,083,615,710,408,860
5. Step 5: Solve for x
   x = 15,083,615,710,408,860/139,969,282.24
6. Step 6: Final answer
   x = 107,763,756.94