Finding the Fourth Proportional to 132,706.86, 183,131.78 and 72,276.18

Step by Step Solution

1. Step 1: Write the proportion equation
   132,706.86 : 183,131.78 = 72,276.18 : x
2. Step 2: Convert to fraction form
   132,706.86/183,131.78 = 72,276.18/x
3. Step 3: Cross multiply
   132,706.86x = 183,131.78 × 72,276.18
4. Step 4: Simplify right side
   132,706.86x = 13,236,065,495.00
5. Step 5: Solve for x
   x = 13,236,065,495.00/132,706.86
6. Step 6: Final answer
   x = 99,739.12