Finding the Fourth Proportional to 56,210.01, 77,568.87 and 30,715.82

Step by Step Solution

1. Step 1: Write the proportion equation
   56,210.01 : 77,568.87 = 30,715.82 : x
2. Step 2: Convert to fraction form
   56,210.01/77,568.87 = 30,715.82/x
3. Step 3: Cross multiply
   56,210.01x = 77,568.87 × 30,715.82
4. Step 4: Simplify right side
   56,210.01x = 2,382,591,448.52
5. Step 5: Solve for x
   x = 2,382,591,448.52/56,210.01
6. Step 6: Final answer
   x = 42,387.32