Finding the Fourth Proportional to 42,496,620.42, 63,757,939.98 and 21,761,739.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,496,620.42 : 63,757,939.98 = 21,761,739.60 : x
2. Step 2: Convert to fraction form
   42,496,620.42/63,757,939.98 = 21,761,739.60/x
3. Step 3: Cross multiply
   42,496,620.42x = 63,757,939.98 × 21,761,739.60
4. Step 4: Simplify right side
   42,496,620.42x = 1,387,483,687,277,189.25
5. Step 5: Solve for x
   x = 1,387,483,687,277,189.25/42,496,620.42
6. Step 6: Final answer
   x = 32,649,271.25