Finding the Fourth Proportional to 8,778,404.31, 13,166,276.04 and 2,389,154.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,778,404.31 : 13,166,276.04 = 2,389,154.55 : x
2. Step 2: Convert to fraction form
   8,778,404.31/13,166,276.04 = 2,389,154.55/x
3. Step 3: Cross multiply
   8,778,404.31x = 13,166,276.04 × 2,389,154.55
4. Step 4: Simplify right side
   8,778,404.31x = 31,456,268,307,521.98
5. Step 5: Solve for x
   x = 31,456,268,307,521.98/8,778,404.31
6. Step 6: Final answer
   x = 3,583,369.73