Finding the Fourth Proportional to 105,567.79, 158,354.35 and 30,688.63

Step by Step Solution

1. Step 1: Write the proportion equation
   105,567.79 : 158,354.35 = 30,688.63 : x
2. Step 2: Convert to fraction form
   105,567.79/158,354.35 = 30,688.63/x
3. Step 3: Cross multiply
   105,567.79x = 158,354.35 × 30,688.63
4. Step 4: Simplify right side
   105,567.79x = 4,859,678,056.04
5. Step 5: Solve for x
   x = 4,859,678,056.04/105,567.79
6. Step 6: Final answer
   x = 46,033.72