Finding the Fourth Proportional to 132,548.18, 182,914.62 and 72,118.10

Step by Step Solution

1. Step 1: Write the proportion equation
   132,548.18 : 182,914.62 = 72,118.10 : x
2. Step 2: Convert to fraction form
   132,548.18/182,914.62 = 72,118.10/x
3. Step 3: Cross multiply
   132,548.18x = 182,914.62 × 72,118.10
4. Step 4: Simplify right side
   132,548.18x = 13,191,454,856.62
5. Step 5: Solve for x
   x = 13,191,454,856.62/132,548.18
6. Step 6: Final answer
   x = 99,521.96