Finding the Fourth Proportional to 144,279,128.42, 199,123,636.52 and 80,703,000.82

Step by Step Solution

1. Step 1: Write the proportion equation
   144,279,128.42 : 199,123,636.52 = 80,703,000.82 : x
2. Step 2: Convert to fraction form
   144,279,128.42/199,123,636.52 = 80,703,000.82/x
3. Step 3: Cross multiply
   144,279,128.42x = 199,123,636.52 × 80,703,000.82
4. Step 4: Simplify right side
   144,279,128.42x = 16,069,875,001,354,942
5. Step 5: Solve for x
   x = 16,069,875,001,354,942/144,279,128.42
6. Step 6: Final answer
   x = 111,380,455.21