Finding the Fourth Proportional to 56,572.75, 78,072.83 and 31,422.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,572.75 : 78,072.83 = 31,422.25 : x
2. Step 2: Convert to fraction form
   56,572.75/78,072.83 = 31,422.25/x
3. Step 3: Cross multiply
   56,572.75x = 78,072.83 × 31,422.25
4. Step 4: Simplify right side
   56,572.75x = 2,453,223,982.47
5. Step 5: Solve for x
   x = 2,453,223,982.47/56,572.75
6. Step 6: Final answer
   x = 43,364.06