Finding the Fourth Proportional to 139,568.21, 192,541.96 and 93,011.54

Step by Step Solution

1. Step 1: Write the proportion equation
   139,568.21 : 192,541.96 = 93,011.54 : x
2. Step 2: Convert to fraction form
   139,568.21/192,541.96 = 93,011.54/x
3. Step 3: Cross multiply
   139,568.21x = 192,541.96 × 93,011.54
4. Step 4: Simplify right side
   139,568.21x = 17,908,624,450.82
5. Step 5: Solve for x
   x = 17,908,624,450.82/139,568.21
6. Step 6: Final answer
   x = 128,314.49