Finding the Fourth Proportional to 132,837.48, 183,315.83 and 72,406.89

Step by Step Solution

1. Step 1: Write the proportion equation
   132,837.48 : 183,315.83 = 72,406.89 : x
2. Step 2: Convert to fraction form
   132,837.48/183,315.83 = 72,406.89/x
3. Step 3: Cross multiply
   132,837.48x = 183,315.83 × 72,406.89
4. Step 4: Simplify right side
   132,837.48x = 13,273,328,776.03
5. Step 5: Solve for x
   x = 13,273,328,776.03/132,837.48
6. Step 6: Final answer
   x = 99,921.56