Finding the Fourth Proportional to 56,599.12, 78,103.56 and 31,447

Step by Step Solution

1. Step 1: Write the proportion equation
   56,599.12 : 78,103.56 = 31,447 : x
2. Step 2: Convert to fraction form
   56,599.12/78,103.56 = 31,447/x
3. Step 3: Cross multiply
   56,599.12x = 78,103.56 × 31,447
4. Step 4: Simplify right side
   56,599.12x = 2,456,122,651.32
5. Step 5: Solve for x
   x = 2,456,122,651.32/56,599.12
6. Step 6: Final answer
   x = 43,395.07