Finding the Fourth Proportional to 56,868.65, 78,479.00 and 31,375.32

Step by Step Solution

1. Step 1: Write the proportion equation
   56,868.65 : 78,479.00 = 31,375.32 : x
2. Step 2: Convert to fraction form
   56,868.65/78,479.00 = 31,375.32/x
3. Step 3: Cross multiply
   56,868.65x = 78,479.00 × 31,375.32
4. Step 4: Simplify right side
   56,868.65x = 2,462,303,581.40
5. Step 5: Solve for x
   x = 2,462,303,581.40/56,868.65
6. Step 6: Final answer
   x = 43,298.09