Finding the Fourth Proportional to 9,866,180.42, 13,615,383.59 and 5,515,450.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,866,180.42 : 13,615,383.59 = 5,515,450.10 : x
2. Step 2: Convert to fraction form
   9,866,180.42/13,615,383.59 = 5,515,450.10/x
3. Step 3: Cross multiply
   9,866,180.42x = 13,615,383.59 × 5,515,450.10
4. Step 4: Simplify right side
   9,866,180.42x = 75,094,968,687,349.69
5. Step 5: Solve for x
   x = 75,094,968,687,349.69/9,866,180.42
6. Step 6: Final answer
   x = 7,611,351.66