Finding the Fourth Proportional to 7,164,099.98, 9,886,415.76 and 3,900,906.89

Step by Step Solution

1. Step 1: Write the proportion equation
   7,164,099.98 : 9,886,415.76 = 3,900,906.89 : x
2. Step 2: Convert to fraction form
   7,164,099.98/9,886,415.76 = 3,900,906.89/x
3. Step 3: Cross multiply
   7,164,099.98x = 9,886,415.76 × 3,900,906.89
4. Step 4: Simplify right side
   7,164,099.98x = 38,565,987,306,156.51
5. Step 5: Solve for x
   x = 38,565,987,306,156.51/7,164,099.98
6. Step 6: Final answer
   x = 5,383,228.52