Finding the Fourth Proportional to 139,959,344.74, 193,143,978.89 and 78,079,683.37

Step by Step Solution

1. Step 1: Write the proportion equation
   139,959,344.74 : 193,143,978.89 = 78,079,683.37 : x
2. Step 2: Convert to fraction form
   139,959,344.74/193,143,978.89 = 78,079,683.37/x
3. Step 3: Cross multiply
   139,959,344.74x = 193,143,978.89 × 78,079,683.37
4. Step 4: Simplify right side
   139,959,344.74x = 15,080,620,716,162,766
5. Step 5: Solve for x
   x = 15,080,620,716,162,766/139,959,344.74
6. Step 6: Final answer
   x = 107,750,009.43