Finding the Fourth Proportional to 132,531, 182,892.78 and 72,918.84

Step by Step Solution

1. Step 1: Write the proportion equation
   132,531 : 182,892.78 = 72,918.84 : x
2. Step 2: Convert to fraction form
   132,531/182,892.78 = 72,918.84/x
3. Step 3: Cross multiply
   132,531x = 182,892.78 × 72,918.84
4. Step 4: Simplify right side
   132,531x = 13,336,329,361.98
5. Step 5: Solve for x
   x = 13,336,329,361.98/132,531
6. Step 6: Final answer
   x = 100,628.00