Finding the Fourth Proportional to 56,809.83, 78,397.56 and 31,316.62

Step by Step Solution

1. Step 1: Write the proportion equation
   56,809.83 : 78,397.56 = 31,316.62 : x
2. Step 2: Convert to fraction form
   56,809.83/78,397.56 = 31,316.62/x
3. Step 3: Cross multiply
   56,809.83x = 78,397.56 × 31,316.62
4. Step 4: Simplify right side
   56,809.83x = 2,455,146,595.45
5. Step 5: Solve for x
   x = 2,455,146,595.45/56,809.83
6. Step 6: Final answer
   x = 43,216.93