Finding the Fourth Proportional to 56,238.84, 77,607.18 and 30,744.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,238.84 : 77,607.18 = 30,744.72 : x
2. Step 2: Convert to fraction form
   56,238.84/77,607.18 = 30,744.72/x
3. Step 3: Cross multiply
   56,238.84x = 77,607.18 × 30,744.72
4. Step 4: Simplify right side
   56,238.84x = 2,386,011,019.09
5. Step 5: Solve for x
   x = 2,386,011,019.09/56,238.84
6. Step 6: Final answer
   x = 42,426.39