Finding the Fourth Proportional to 56,320.87, 77,722.59 and 30,479.37

Step by Step Solution

1. Step 1: Write the proportion equation
   56,320.87 : 77,722.59 = 30,479.37 : x
2. Step 2: Convert to fraction form
   56,320.87/77,722.59 = 30,479.37/x
3. Step 3: Cross multiply
   56,320.87x = 77,722.59 × 30,479.37
4. Step 4: Simplify right side
   56,320.87x = 2,368,935,400.81
5. Step 5: Solve for x
   x = 2,368,935,400.81/56,320.87
6. Step 6: Final answer
   x = 42,061.41