Finding the Fourth Proportional to 56,646.56, 78,172.32 and 31,496

Step by Step Solution

1. Step 1: Write the proportion equation
   56,646.56 : 78,172.32 = 31,496 : x
2. Step 2: Convert to fraction form
   56,646.56/78,172.32 = 31,496/x
3. Step 3: Cross multiply
   56,646.56x = 78,172.32 × 31,496
4. Step 4: Simplify right side
   56,646.56x = 2,462,115,390.72
5. Step 5: Solve for x
   x = 2,462,115,390.72/56,646.56
6. Step 6: Final answer
   x = 43,464.52