Finding the Fourth Proportional to 72,344.15, 108,101.74 and 55,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,344.15 : 108,101.74 = 55,152.50 : x
2. Step 2: Convert to fraction form
   72,344.15/108,101.74 = 55,152.50/x
3. Step 3: Cross multiply
   72,344.15x = 108,101.74 × 55,152.50
4. Step 4: Simplify right side
   72,344.15x = 5,962,081,347.72
5. Step 5: Solve for x
   x = 5,962,081,347.72/72,344.15
6. Step 6: Final answer
   x = 82,412.77