Finding the Fourth Proportional to 55,992.45, 77,268.42 and 30,499.10

Step by Step Solution

1. Step 1: Write the proportion equation
   55,992.45 : 77,268.42 = 30,499.10 : x
2. Step 2: Convert to fraction form
   55,992.45/77,268.42 = 30,499.10/x
3. Step 3: Cross multiply
   55,992.45x = 77,268.42 × 30,499.10
4. Step 4: Simplify right side
   55,992.45x = 2,356,617,268.42
5. Step 5: Solve for x
   x = 2,356,617,268.42/55,992.45
6. Step 6: Final answer
   x = 42,088.13