Finding the Fourth Proportional to 139,422.14, 209,015.67 and 60,476.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,422.14 : 209,015.67 = 60,476.93 : x
2. Step 2: Convert to fraction form
   139,422.14/209,015.67 = 60,476.93/x
3. Step 3: Cross multiply
   139,422.14x = 209,015.67 × 60,476.93
4. Step 4: Simplify right side
   139,422.14x = 12,640,626,043.49
5. Step 5: Solve for x
   x = 12,640,626,043.49/139,422.14
6. Step 6: Final answer
   x = 90,664.41