Finding the Fourth Proportional to 12,826,539.42, 17,700,967.71 and 7,244,338.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826,539.42 : 17,700,967.71 = 7,244,338.02 : x
2. Step 2: Convert to fraction form
   12,826,539.42/17,700,967.71 = 7,244,338.02/x
3. Step 3: Cross multiply
   12,826,539.42x = 17,700,967.71 × 7,244,338.02
4. Step 4: Simplify right side
   12,826,539.42x = 128,231,793,372,345.33
5. Step 5: Solve for x
   x = 128,231,793,372,345.33/12,826,539.42
6. Step 6: Final answer
   x = 9,997,380.37