Finding the Fourth Proportional to 56,939.48, 78,575.14 and 31,445.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,939.48 : 78,575.14 = 31,445.34 : x
2. Step 2: Convert to fraction form
   56,939.48/78,575.14 = 31,445.34/x
3. Step 3: Cross multiply
   56,939.48x = 78,575.14 × 31,445.34
4. Step 4: Simplify right side
   56,939.48x = 2,470,822,032.15
5. Step 5: Solve for x
   x = 2,470,822,032.15/56,939.48
6. Step 6: Final answer
   x = 43,393.83