Finding the Fourth Proportional to 56,828.82, 78,404.72 and 36,699.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,828.82 : 78,404.72 = 36,699.31 : x
2. Step 2: Convert to fraction form
   56,828.82/78,404.72 = 36,699.31/x
3. Step 3: Cross multiply
   56,828.82x = 78,404.72 × 36,699.31
4. Step 4: Simplify right side
   56,828.82x = 2,877,399,124.74
5. Step 5: Solve for x
   x = 2,877,399,124.74/56,828.82
6. Step 6: Final answer
   x = 50,632.74