Finding the Fourth Proportional to 55,300.16, 76,305.35 and 31,101.05

Step by Step Solution

1. Step 1: Write the proportion equation
   55,300.16 : 76,305.35 = 31,101.05 : x
2. Step 2: Convert to fraction form
   55,300.16/76,305.35 = 31,101.05/x
3. Step 3: Cross multiply
   55,300.16x = 76,305.35 × 31,101.05
4. Step 4: Simplify right side
   55,300.16x = 2,373,176,327.17
5. Step 5: Solve for x
   x = 2,373,176,327.17/55,300.16
6. Step 6: Final answer
   x = 42,914.46