Finding the Fourth Proportional to 139,647,814.84, 209,477,617.92 and 41,279,746.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,647,814.84 : 209,477,617.92 = 41,279,746.50 : x
2. Step 2: Convert to fraction form
   139,647,814.84/209,477,617.92 = 41,279,746.50/x
3. Step 3: Cross multiply
   139,647,814.84x = 209,477,617.92 × 41,279,746.50
4. Step 4: Simplify right side
   139,647,814.84x = 8,647,182,965,161,457
5. Step 5: Solve for x
   x = 8,647,182,965,161,457/139,647,814.84
6. Step 6: Final answer
   x = 61,921,362.50