Finding the Fourth Proportional to 132,513.32, 182,871.72 and 72,087.36

Step by Step Solution

1. Step 1: Write the proportion equation
   132,513.32 : 182,871.72 = 72,087.36 : x
2. Step 2: Convert to fraction form
   132,513.32/182,871.72 = 72,087.36/x
3. Step 3: Cross multiply
   132,513.32x = 182,871.72 × 72,087.36
4. Step 4: Simplify right side
   132,513.32x = 13,182,739,513.46
5. Step 5: Solve for x
   x = 13,182,739,513.46/132,513.32
6. Step 6: Final answer
   x = 99,482.37