Finding the Fourth Proportional to 12,293,071.85, 18,402,282.98 and 10,949,379.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,293,071.85 : 18,402,282.98 = 10,949,379.05 : x
2. Step 2: Convert to fraction form
   12,293,071.85/18,402,282.98 = 10,949,379.05/x
3. Step 3: Cross multiply
   12,293,071.85x = 18,402,282.98 × 10,949,379.05
4. Step 4: Simplify right side
   12,293,071.85x = 201,493,571,678,636.72
5. Step 5: Solve for x
   x = 201,493,571,678,636.72/12,293,071.85
6. Step 6: Final answer
   x = 16,390,823.56