Finding the Fourth Proportional to 55,404.89, 76,457.79 and 31,531.08

Step by Step Solution

1. Step 1: Write the proportion equation
   55,404.89 : 76,457.79 = 31,531.08 : x
2. Step 2: Convert to fraction form
   55,404.89/76,457.79 = 31,531.08/x
3. Step 3: Cross multiply
   55,404.89x = 76,457.79 × 31,531.08
4. Step 4: Simplify right side
   55,404.89x = 2,410,796,693.11
5. Step 5: Solve for x
   x = 2,410,796,693.11/55,404.89
6. Step 6: Final answer
   x = 43,512.35