Finding the Fourth Proportional to 139,968,111.70, 209,952,167.55 and 42,938,794.90

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,111.70 : 209,952,167.55 = 42,938,794.90 : x
2. Step 2: Convert to fraction form
   139,968,111.70/209,952,167.55 = 42,938,794.90/x
3. Step 3: Cross multiply
   139,968,111.70x = 209,952,167.55 × 42,938,794.90
4. Step 4: Simplify right side
   139,968,111.70x = 9,015,093,061,239,886
5. Step 5: Solve for x
   x = 9,015,093,061,239,886/139,968,111.70
6. Step 6: Final answer
   x = 64,408,192.35