Finding the Fourth Proportional to 56,978.06, 85,441.10 and 23,678.29

Step by Step Solution

1. Step 1: Write the proportion equation
   56,978.06 : 85,441.10 = 23,678.29 : x
2. Step 2: Convert to fraction form
   56,978.06/85,441.10 = 23,678.29/x
3. Step 3: Cross multiply
   56,978.06x = 85,441.10 × 23,678.29
4. Step 4: Simplify right side
   56,978.06x = 2,023,098,716.51
5. Step 5: Solve for x
   x = 2,023,098,716.51/56,978.06
6. Step 6: Final answer
   x = 35,506.63