Finding the Fourth Proportional to 8,201,978.30, 12,302,967.45 and 3,419,009.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,201,978.30 : 12,302,967.45 = 3,419,009.30 : x
2. Step 2: Convert to fraction form
   8,201,978.30/12,302,967.45 = 3,419,009.30/x
3. Step 3: Cross multiply
   8,201,978.30x = 12,302,967.45 × 3,419,009.30
4. Step 4: Simplify right side
   8,201,978.30x = 42,063,960,129,147.28
5. Step 5: Solve for x
   x = 42,063,960,129,147.28/8,201,978.30
6. Step 6: Final answer
   x = 5,128,513.95