Finding the Fourth Proportional to 54,978.42, 82,492.22 and 31,604.86

Step by Step Solution

1. Step 1: Write the proportion equation
   54,978.42 : 82,492.22 = 31,604.86 : x
2. Step 2: Convert to fraction form
   54,978.42/82,492.22 = 31,604.86/x
3. Step 3: Cross multiply
   54,978.42x = 82,492.22 × 31,604.86
4. Step 4: Simplify right side
   54,978.42x = 2,607,155,064.19
5. Step 5: Solve for x
   x = 2,607,155,064.19/54,978.42
6. Step 6: Final answer
   x = 47,421.43