Finding the Fourth Proportional to 12,490,538.25, 17,241,699.37 and 8,140,682.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,490,538.25 : 17,241,699.37 = 8,140,682.73 : x
2. Step 2: Convert to fraction form
   12,490,538.25/17,241,699.37 = 8,140,682.73/x
3. Step 3: Cross multiply
   12,490,538.25x = 17,241,699.37 × 8,140,682.73
4. Step 4: Simplify right side
   12,490,538.25x = 140,359,204,356,779.33
5. Step 5: Solve for x
   x = 140,359,204,356,779.33/12,490,538.25
6. Step 6: Final answer
   x = 11,237,242.26