Finding the Fourth Proportional to 12,501,789.12, 18,739,895.94 and 8,458,703.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,501,789.12 : 18,739,895.94 = 8,458,703.82 : x
2. Step 2: Convert to fraction form
   12,501,789.12/18,739,895.94 = 8,458,703.82/x
3. Step 3: Cross multiply
   12,501,789.12x = 18,739,895.94 × 8,458,703.82
4. Step 4: Simplify right side
   12,501,789.12x = 158,515,229,374,080.50
5. Step 5: Solve for x
   x = 158,515,229,374,080.50/12,501,789.12
6. Step 6: Final answer
   x = 12,679,403.55