Finding the Fourth Proportional to 132,615, 183,008.70 and 72,999

Step by Step Solution

1. Step 1: Write the proportion equation
   132,615 : 183,008.70 = 72,999 : x
2. Step 2: Convert to fraction form
   132,615/183,008.70 = 72,999/x
3. Step 3: Cross multiply
   132,615x = 183,008.70 × 72,999
4. Step 4: Simplify right side
   132,615x = 13,359,452,091.30
5. Step 5: Solve for x
   x = 13,359,452,091.30/132,615
6. Step 6: Final answer
   x = 100,738.62