Finding the Fourth Proportional to 56,922.50, 78,553.86 and 31,772

Step by Step Solution

1. Step 1: Write the proportion equation
   56,922.50 : 78,553.86 = 31,772 : x
2. Step 2: Convert to fraction form
   56,922.50/78,553.86 = 31,772/x
3. Step 3: Cross multiply
   56,922.50x = 78,553.86 × 31,772
4. Step 4: Simplify right side
   56,922.50x = 2,495,813,239.92
5. Step 5: Solve for x
   x = 2,495,813,239.92/56,922.50
6. Step 6: Final answer
   x = 43,845.81