Finding the Fourth Proportional to 132,404.04, 182,721.06 and 71,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   132,404.04 : 182,721.06 = 71,978.76 : x
2. Step 2: Convert to fraction form
   132,404.04/182,721.06 = 71,978.76/x
3. Step 3: Cross multiply
   132,404.04x = 182,721.06 × 71,978.76
4. Step 4: Simplify right side
   132,404.04x = 13,152,035,324.69
5. Step 5: Solve for x
   x = 13,152,035,324.69/132,404.04
6. Step 6: Final answer
   x = 99,332.58