Finding the Fourth Proportional to 9,766,630.49, 13,478,197.54 and 5,356,531.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,766,630.49 : 13,478,197.54 = 5,356,531.71 : x
2. Step 2: Convert to fraction form
   9,766,630.49/13,478,197.54 = 5,356,531.71/x
3. Step 3: Cross multiply
   9,766,630.49x = 13,478,197.54 × 5,356,531.71
4. Step 4: Simplify right side
   9,766,630.49x = 72,196,392,478,064.89
5. Step 5: Solve for x
   x = 72,196,392,478,064.89/9,766,630.49
6. Step 6: Final answer
   x = 7,392,149.48