Finding the Fourth Proportional to 9,989,476.45, 14,978,146.83 and 3,916,932.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,989,476.45 : 14,978,146.83 = 3,916,932.79 : x
2. Step 2: Convert to fraction form
   9,989,476.45/14,978,146.83 = 3,916,932.79/x
3. Step 3: Cross multiply
   9,989,476.45x = 14,978,146.83 × 3,916,932.79
4. Step 4: Simplify right side
   9,989,476.45x = 58,668,394,451,861.55
5. Step 5: Solve for x
   x = 58,668,394,451,861.55/9,989,476.45
6. Step 6: Final answer
   x = 5,873,019.95