Finding the Fourth Proportional to 107,152.37, 147,532.89 and 81,576.62

Step by Step Solution

1. Step 1: Write the proportion equation
   107,152.37 : 147,532.89 = 81,576.62 : x
2. Step 2: Convert to fraction form
   107,152.37/147,532.89 = 81,576.62/x
3. Step 3: Cross multiply
   107,152.37x = 147,532.89 × 81,576.62
4. Step 4: Simplify right side
   107,152.37x = 12,035,234,626.53
5. Step 5: Solve for x
   x = 12,035,234,626.53/107,152.37
6. Step 6: Final answer
   x = 112,318.89