Finding the Fourth Proportional to 105,084.30, 157,622.01 and 48,905.05

Step by Step Solution

1. Step 1: Write the proportion equation
   105,084.30 : 157,622.01 = 48,905.05 : x
2. Step 2: Convert to fraction form
   105,084.30/157,622.01 = 48,905.05/x
3. Step 3: Cross multiply
   105,084.30x = 157,622.01 × 48,905.05
4. Step 4: Simplify right side
   105,084.30x = 7,708,512,280.15
5. Step 5: Solve for x
   x = 7,708,512,280.15/105,084.30
6. Step 6: Final answer
   x = 73,355.51