Finding the Fourth Proportional to 132,409.31, 182,722.69 and 71,981.47

Step by Step Solution

1. Step 1: Write the proportion equation
   132,409.31 : 182,722.69 = 71,981.47 : x
2. Step 2: Convert to fraction form
   132,409.31/182,722.69 = 71,981.47/x
3. Step 3: Cross multiply
   132,409.31x = 182,722.69 × 71,981.47
4. Step 4: Simplify right side
   132,409.31x = 13,152,648,454.50
5. Step 5: Solve for x
   x = 13,152,648,454.50/132,409.31
6. Step 6: Final answer
   x = 99,333.26