Finding the Fourth Proportional to 56,648.25, 78,174.59 and 31,497.21

Step by Step Solution

1. Step 1: Write the proportion equation
   56,648.25 : 78,174.59 = 31,497.21 : x
2. Step 2: Convert to fraction form
   56,648.25/78,174.59 = 31,497.21/x
3. Step 3: Cross multiply
   56,648.25x = 78,174.59 × 31,497.21
4. Step 4: Simplify right side
   56,648.25x = 2,462,281,320.41
5. Step 5: Solve for x
   x = 2,462,281,320.41/56,648.25
6. Step 6: Final answer
   x = 43,466.15