Finding the Fourth Proportional to 139,359,460.82, 209,025,683.73 and 42,316,021.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,359,460.82 : 209,025,683.73 = 42,316,021.44 : x
2. Step 2: Convert to fraction form
   139,359,460.82/209,025,683.73 = 42,316,021.44/x
3. Step 3: Cross multiply
   139,359,460.82x = 209,025,683.73 × 42,316,021.44
4. Step 4: Simplify right side
   139,359,460.82x = 8,845,135,314,229,338
5. Step 5: Solve for x
   x = 8,845,135,314,229,338/139,359,460.82
6. Step 6: Final answer
   x = 63,469,930.66