Finding the Fourth Proportional to 55,206.06, 76,186.17 and 31,011.30

Step by Step Solution

1. Step 1: Write the proportion equation
   55,206.06 : 76,186.17 = 31,011.30 : x
2. Step 2: Convert to fraction form
   55,206.06/76,186.17 = 31,011.30/x
3. Step 3: Cross multiply
   55,206.06x = 76,186.17 × 31,011.30
4. Step 4: Simplify right side
   55,206.06x = 2,362,632,173.72
5. Step 5: Solve for x
   x = 2,362,632,173.72/55,206.06
6. Step 6: Final answer
   x = 42,796.61