Finding the Fourth Proportional to 9,915,300.78, 14,868,164.09 and 4,156,487.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,915,300.78 : 14,868,164.09 = 4,156,487.60 : x
2. Step 2: Convert to fraction form
   9,915,300.78/14,868,164.09 = 4,156,487.60/x
3. Step 3: Cross multiply
   9,915,300.78x = 14,868,164.09 × 4,156,487.60
4. Step 4: Simplify right side
   9,915,300.78x = 61,799,339,579,727.03
5. Step 5: Solve for x
   x = 61,799,339,579,727.03/9,915,300.78
6. Step 6: Final answer
   x = 6,232,724.65