Finding the Fourth Proportional to 139,443,424.03, 209,190,669.30 and 57,517,609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,443,424.03 : 209,190,669.30 = 57,517,609.42 : x
2. Step 2: Convert to fraction form
   139,443,424.03/209,190,669.30 = 57,517,609.42/x
3. Step 3: Cross multiply
   139,443,424.03x = 209,190,669.30 × 57,517,609.42
4. Step 4: Simplify right side
   139,443,424.03x = 12,032,147,211,105,786
5. Step 5: Solve for x
   x = 12,032,147,211,105,786/139,443,424.03
6. Step 6: Final answer
   x = 86,286,946.08