Finding the Fourth Proportional to 139,443,426.05, 209,190,672.32 and 57,517,611.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,443,426.05 : 209,190,672.32 = 57,517,611.44 : x
2. Step 2: Convert to fraction form
   139,443,426.05/209,190,672.32 = 57,517,611.44/x
3. Step 3: Cross multiply
   139,443,426.05x = 209,190,672.32 × 57,517,611.44
4. Step 4: Simplify right side
   139,443,426.05x = 12,032,147,806,040,582
5. Step 5: Solve for x
   x = 12,032,147,806,040,582/139,443,426.05
6. Step 6: Final answer
   x = 86,286,949.10