Finding the Fourth Proportional to 56,817.18, 78,404.15 and 31,322.23

Step by Step Solution

1. Step 1: Write the proportion equation
   56,817.18 : 78,404.15 = 31,322.23 : x
2. Step 2: Convert to fraction form
   56,817.18/78,404.15 = 31,322.23/x
3. Step 3: Cross multiply
   56,817.18x = 78,404.15 × 31,322.23
4. Step 4: Simplify right side
   56,817.18x = 2,455,792,701.55
5. Step 5: Solve for x
   x = 2,455,792,701.55/56,817.18
6. Step 6: Final answer
   x = 43,222.71