Finding the Fourth Proportional to 56,196.78, 77,550.51 and 31,045.74

Step by Step Solution

1. Step 1: Write the proportion equation
   56,196.78 : 77,550.51 = 31,045.74 : x
2. Step 2: Convert to fraction form
   56,196.78/77,550.51 = 31,045.74/x
3. Step 3: Cross multiply
   56,196.78x = 77,550.51 × 31,045.74
4. Step 4: Simplify right side
   56,196.78x = 2,407,612,970.33
5. Step 5: Solve for x
   x = 2,407,612,970.33/56,196.78
6. Step 6: Final answer
   x = 42,842.54