Finding the Fourth Proportional to 130,592.72, 180,217.32 and 70,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   130,592.72 : 180,217.32 = 70,976.72 : x
2. Step 2: Convert to fraction form
   130,592.72/180,217.32 = 70,976.72/x
3. Step 3: Cross multiply
   130,592.72x = 180,217.32 × 70,976.72
4. Step 4: Simplify right side
   130,592.72x = 12,791,234,260.79
5. Step 5: Solve for x
   x = 12,791,234,260.79/130,592.72
6. Step 6: Final answer
   x = 97,947.53