Finding the Fourth Proportional to 56,416.33, 77,851.37 and 30,917.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,416.33 : 77,851.37 = 30,917.83 : x
2. Step 2: Convert to fraction form
   56,416.33/77,851.37 = 30,917.83/x
3. Step 3: Cross multiply
   56,416.33x = 77,851.37 × 30,917.83
4. Step 4: Simplify right side
   56,416.33x = 2,406,995,268.34
5. Step 5: Solve for x
   x = 2,406,995,268.34/56,416.33
6. Step 6: Final answer
   x = 42,664.87