Finding the Fourth Proportional to 139,566,492.78, 209,372,479.83 and 41,208,141.89

Step by Step Solution

1. Step 1: Write the proportion equation
   139,566,492.78 : 209,372,479.83 = 41,208,141.89 : x
2. Step 2: Convert to fraction form
   139,566,492.78/209,372,479.83 = 41,208,141.89/x
3. Step 3: Cross multiply
   139,566,492.78x = 209,372,479.83 × 41,208,141.89
4. Step 4: Simplify right side
   139,566,492.78x = 8,627,850,855,648,941
5. Step 5: Solve for x
   x = 8,627,850,855,648,941/139,566,492.78
6. Step 6: Final answer
   x = 61,818,927.19