Finding the Fourth Proportional to 56,049, 77,349.24 and 30,900.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,049 : 77,349.24 = 30,900.12 : x
2. Step 2: Convert to fraction form
   56,049/77,349.24 = 30,900.12/x
3. Step 3: Cross multiply
   56,049x = 77,349.24 × 30,900.12
4. Step 4: Simplify right side
   56,049x = 2,390,100,797.91
5. Step 5: Solve for x
   x = 2,390,100,797.91/56,049
6. Step 6: Final answer
   x = 42,643.06