Finding the Fourth Proportional to 12,591,939.58, 18,885,796.42 and 3,494,961.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,591,939.58 : 18,885,796.42 = 3,494,961.34 : x
2. Step 2: Convert to fraction form
   12,591,939.58/18,885,796.42 = 3,494,961.34/x
3. Step 3: Cross multiply
   12,591,939.58x = 18,885,796.42 × 3,494,961.34
4. Step 4: Simplify right side
   12,591,939.58x = 66,005,128,363,010.41
5. Step 5: Solve for x
   x = 66,005,128,363,010.41/12,591,939.58
6. Step 6: Final answer
   x = 5,241,855.55