Finding the Fourth Proportional to 131,886, 182,002.68 and 72,270

Step by Step Solution

1. Step 1: Write the proportion equation
   131,886 : 182,002.68 = 72,270 : x
2. Step 2: Convert to fraction form
   131,886/182,002.68 = 72,270/x
3. Step 3: Cross multiply
   131,886x = 182,002.68 × 72,270
4. Step 4: Simplify right side
   131,886x = 13,153,333,683.60
5. Step 5: Solve for x
   x = 13,153,333,683.60/131,886
6. Step 6: Final answer
   x = 99,732.60