Finding the Fourth Proportional to 55,364.35, 76,404.59 and 31,490.41

Step by Step Solution

1. Step 1: Write the proportion equation
   55,364.35 : 76,404.59 = 31,490.41 : x
2. Step 2: Convert to fraction form
   55,364.35/76,404.59 = 31,490.41/x
3. Step 3: Cross multiply
   55,364.35x = 76,404.59 × 31,490.41
4. Step 4: Simplify right side
   55,364.35x = 2,406,011,864.98
5. Step 5: Solve for x
   x = 2,406,011,864.98/55,364.35
6. Step 6: Final answer
   x = 43,457.78