Finding the Fourth Proportional to 56,796.13, 78,377.59 and 31,304.85

Step by Step Solution

1. Step 1: Write the proportion equation
   56,796.13 : 78,377.59 = 31,304.85 : x
2. Step 2: Convert to fraction form
   56,796.13/78,377.59 = 31,304.85/x
3. Step 3: Cross multiply
   56,796.13x = 78,377.59 × 31,304.85
4. Step 4: Simplify right side
   56,796.13x = 2,453,598,698.31
5. Step 5: Solve for x
   x = 2,453,598,698.31/56,796.13
6. Step 6: Final answer
   x = 43,200.10