Finding the Fourth Proportional to 42,373,524.31, 63,560,876.96 and 12,081,387.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,373,524.31 : 63,560,876.96 = 12,081,387.31 : x
2. Step 2: Convert to fraction form
   42,373,524.31/63,560,876.96 = 12,081,387.31/x
3. Step 3: Cross multiply
   42,373,524.31x = 63,560,876.96 × 12,081,387.31
4. Step 4: Simplify right side
   42,373,524.31x = 767,903,572,188,316.62
5. Step 5: Solve for x
   x = 767,903,572,188,316.62/42,373,524.31
6. Step 6: Final answer
   x = 18,122,249.32