Finding the Fourth Proportional to 60,978.25, 91,924.45 and 56,914.12

Step by Step Solution

1. Step 1: Write the proportion equation
   60,978.25 : 91,924.45 = 56,914.12 : x
2. Step 2: Convert to fraction form
   60,978.25/91,924.45 = 56,914.12/x
3. Step 3: Cross multiply
   60,978.25x = 91,924.45 × 56,914.12
4. Step 4: Simplify right side
   60,978.25x = 5,231,799,178.23
5. Step 5: Solve for x
   x = 5,231,799,178.23/60,978.25
6. Step 6: Final answer
   x = 85,797.79