Finding the Fourth Proportional to 56,852.19, 78,456.33 and 31,359.45

Step by Step Solution

1. Step 1: Write the proportion equation
   56,852.19 : 78,456.33 = 31,359.45 : x
2. Step 2: Convert to fraction form
   56,852.19/78,456.33 = 31,359.45/x
3. Step 3: Cross multiply
   56,852.19x = 78,456.33 × 31,359.45
4. Step 4: Simplify right side
   56,852.19x = 2,460,347,357.82
5. Step 5: Solve for x
   x = 2,460,347,357.82/56,852.19
6. Step 6: Final answer
   x = 43,276.21