Finding the Fourth Proportional to 56,684.68, 78,222.72 and 31,535.80

Step by Step Solution

1. Step 1: Write the proportion equation
   56,684.68 : 78,222.72 = 31,535.80 : x
2. Step 2: Convert to fraction form
   56,684.68/78,222.72 = 31,535.80/x
3. Step 3: Cross multiply
   56,684.68x = 78,222.72 × 31,535.80
4. Step 4: Simplify right side
   56,684.68x = 2,466,816,053.38
5. Step 5: Solve for x
   x = 2,466,816,053.38/56,684.68
6. Step 6: Final answer
   x = 43,518.21