Finding the Fourth Proportional to 139,541.33, 192,564.83 and 75,878.57

Step by Step Solution

1. Step 1: Write the proportion equation
   139,541.33 : 192,564.83 = 75,878.57 : x
2. Step 2: Convert to fraction form
   139,541.33/192,564.83 = 75,878.57/x
3. Step 3: Cross multiply
   139,541.33x = 192,564.83 × 75,878.57
4. Step 4: Simplify right side
   139,541.33x = 14,611,543,159.57
5. Step 5: Solve for x
   x = 14,611,543,159.57/139,541.33
6. Step 6: Final answer
   x = 104,711.23