Finding the Fourth Proportional to 6,142,978.32, 8,476,927.47 and 3,389,687.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142,978.32 : 8,476,927.47 = 3,389,687.88 : x
2. Step 2: Convert to fraction form
   6,142,978.32/8,476,927.47 = 3,389,687.88/x
3. Step 3: Cross multiply
   6,142,978.32x = 8,476,927.47 × 3,389,687.88
4. Step 4: Simplify right side
   6,142,978.32x = 28,734,138,304,698.07
5. Step 5: Solve for x
   x = 28,734,138,304,698.07/6,142,978.32
6. Step 6: Final answer
   x = 4,677,558.15