Finding the Fourth Proportional to 3,978,374.21, 5,967,602.98 and 3,184,700.97

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978,374.21 : 5,967,602.98 = 3,184,700.97 : x
2. Step 2: Convert to fraction form
   3,978,374.21/5,967,602.98 = 3,184,700.97/x
3. Step 3: Cross multiply
   3,978,374.21x = 5,967,602.98 × 3,184,700.97
4. Step 4: Simplify right side
   3,978,374.21x = 19,005,030,998,980.89
5. Step 5: Solve for x
   x = 19,005,030,998,980.89/3,978,374.21
6. Step 6: Final answer
   x = 4,777,084.81