Finding the Fourth Proportional to 56,766.19, 78,337.34 and 31,615.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,766.19 : 78,337.34 = 31,615.69 : x
2. Step 2: Convert to fraction form
   56,766.19/78,337.34 = 31,615.69/x
3. Step 3: Cross multiply
   56,766.19x = 78,337.34 × 31,615.69
4. Step 4: Simplify right side
   56,766.19x = 2,476,688,821.50
5. Step 5: Solve for x
   x = 2,476,688,821.50/56,766.19
6. Step 6: Final answer
   x = 43,629.65