Finding the Fourth Proportional to 139,968,408.30, 209,952,612.45 and 49,059,192.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,408.30 : 209,952,612.45 = 49,059,192.30 : x
2. Step 2: Convert to fraction form
   139,968,408.30/209,952,612.45 = 49,059,192.30/x
3. Step 3: Cross multiply
   139,968,408.30x = 209,952,612.45 × 49,059,192.30
4. Step 4: Simplify right side
   139,968,408.30x = 10,300,105,588,071,922
5. Step 5: Solve for x
   x = 10,300,105,588,071,922/139,968,408.30
6. Step 6: Final answer
   x = 73,588,788.45