Finding the Fourth Proportional to 22,779,487.98, 31,435,672.93 and 12,858,459.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,779,487.98 : 31,435,672.93 = 12,858,459.39 : x
2. Step 2: Convert to fraction form
   22,779,487.98/31,435,672.93 = 12,858,459.39/x
3. Step 3: Cross multiply
   22,779,487.98x = 31,435,672.93 × 12,858,459.39
4. Step 4: Simplify right side
   22,779,487.98x = 404,214,323,767,727.31
5. Step 5: Solve for x
   x = 404,214,323,767,727.31/22,779,487.98
6. Step 6: Final answer
   x = 17,744,662.40