Finding the Fourth Proportional to 56,907.54, 78,536.76 and 31,418.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,907.54 : 78,536.76 = 31,418.82 : x
2. Step 2: Convert to fraction form
   56,907.54/78,536.76 = 31,418.82/x
3. Step 3: Cross multiply
   56,907.54x = 78,536.76 × 31,418.82
4. Step 4: Simplify right side
   56,907.54x = 2,467,532,208.00
5. Step 5: Solve for x
   x = 2,467,532,208.00/56,907.54
6. Step 6: Final answer
   x = 43,360.37