Finding the Fourth Proportional to 105,328.46, 157,960.56 and 55,381.46

Step by Step Solution

1. Step 1: Write the proportion equation
   105,328.46 : 157,960.56 = 55,381.46 : x
2. Step 2: Convert to fraction form
   105,328.46/157,960.56 = 55,381.46/x
3. Step 3: Cross multiply
   105,328.46x = 157,960.56 × 55,381.46
4. Step 4: Simplify right side
   105,328.46x = 8,748,086,435.22
5. Step 5: Solve for x
   x = 8,748,086,435.22/105,328.46
6. Step 6: Final answer
   x = 83,055.30