Finding the Fourth Proportional to 12,051,662.40, 18,142,647.98 and 10,979,068.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,051,662.40 : 18,142,647.98 = 10,979,068.32 : x
2. Step 2: Convert to fraction form
   12,051,662.40/18,142,647.98 = 10,979,068.32/x
3. Step 3: Cross multiply
   12,051,662.40x = 18,142,647.98 × 10,979,068.32
4. Step 4: Simplify right side
   12,051,662.40x = 199,189,371,678,130
5. Step 5: Solve for x
   x = 199,189,371,678,130/12,051,662.40
6. Step 6: Final answer
   x = 16,527,958.14