Finding the Fourth Proportional to 72,310.08, 108,050.58 and 55,117.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,310.08 : 108,050.58 = 55,117.83 : x
2. Step 2: Convert to fraction form
   72,310.08/108,050.58 = 55,117.83/x
3. Step 3: Cross multiply
   72,310.08x = 108,050.58 × 55,117.83
4. Step 4: Simplify right side
   72,310.08x = 5,955,513,499.84
5. Step 5: Solve for x
   x = 5,955,513,499.84/72,310.08
6. Step 6: Final answer
   x = 82,360.76