Finding the Fourth Proportional to 140,978,276.28, 211,467,123.60 and 79,539,544.83

Step by Step Solution

1. Step 1: Write the proportion equation
   140,978,276.28 : 211,467,123.60 = 79,539,544.83 : x
2. Step 2: Convert to fraction form
   140,978,276.28/211,467,123.60 = 79,539,544.83/x
3. Step 3: Cross multiply
   140,978,276.28x = 211,467,123.60 × 79,539,544.83
4. Step 4: Simplify right side
   140,978,276.28x = 16,819,998,757,653,350
5. Step 5: Solve for x
   x = 16,819,998,757,653,350/140,978,276.28
6. Step 6: Final answer
   x = 119,309,153.17