Finding the Fourth Proportional to 139,795.86, 209,669.94 and 68,700.18

Step by Step Solution

1. Step 1: Write the proportion equation
   139,795.86 : 209,669.94 = 68,700.18 : x
2. Step 2: Convert to fraction form
   139,795.86/209,669.94 = 68,700.18/x
3. Step 3: Cross multiply
   139,795.86x = 209,669.94 × 68,700.18
4. Step 4: Simplify right side
   139,795.86x = 14,404,362,618.59
5. Step 5: Solve for x
   x = 14,404,362,618.59/139,795.86
6. Step 6: Final answer
   x = 103,038.55