Finding the Fourth Proportional to 6,142,978.08, 8,477,299.74 and 3,389,663.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142,978.08 : 8,477,299.74 = 3,389,663.34 : x
2. Step 2: Convert to fraction form
   6,142,978.08/8,477,299.74 = 3,389,663.34/x
3. Step 3: Cross multiply
   6,142,978.08x = 8,477,299.74 × 3,389,663.34
4. Step 4: Simplify right side
   6,142,978.08x = 28,735,192,150,869.53
5. Step 5: Solve for x
   x = 28,735,192,150,869.53/6,142,978.08
6. Step 6: Final answer
   x = 4,677,729.89