Finding the Fourth Proportional to 56,593.69, 78,099.59 and 31,443.19

Step by Step Solution

1. Step 1: Write the proportion equation
   56,593.69 : 78,099.59 = 31,443.19 : x
2. Step 2: Convert to fraction form
   56,593.69/78,099.59 = 31,443.19/x
3. Step 3: Cross multiply
   56,593.69x = 78,099.59 × 31,443.19
4. Step 4: Simplify right side
   56,593.69x = 2,455,700,130.65
5. Step 5: Solve for x
   x = 2,455,700,130.65/56,593.69
6. Step 6: Final answer
   x = 43,391.77