Finding the Fourth Proportional to 55,554.21, 76,669.59 and 31,681.89

Step by Step Solution

1. Step 1: Write the proportion equation
   55,554.21 : 76,669.59 = 31,681.89 : x
2. Step 2: Convert to fraction form
   55,554.21/76,669.59 = 31,681.89/x
3. Step 3: Cross multiply
   55,554.21x = 76,669.59 × 31,681.89
4. Step 4: Simplify right side
   55,554.21x = 2,429,037,516.73
5. Step 5: Solve for x
   x = 2,429,037,516.73/55,554.21
6. Step 6: Final answer
   x = 43,723.73