Finding the Fourth Proportional to 56,938.32, 78,575.94 and 31,446

Step by Step Solution

1. Step 1: Write the proportion equation
   56,938.32 : 78,575.94 = 31,446 : x
2. Step 2: Convert to fraction form
   56,938.32/78,575.94 = 31,446/x
3. Step 3: Cross multiply
   56,938.32x = 78,575.94 × 31,446
4. Step 4: Simplify right side
   56,938.32x = 2,470,899,009.24
5. Step 5: Solve for x
   x = 2,470,899,009.24/56,938.32
6. Step 6: Final answer
   x = 43,396.06