Finding the Fourth Proportional to 56,377.86, 77,800.56 and 30,884.01

Step by Step Solution

1. Step 1: Write the proportion equation
   56,377.86 : 77,800.56 = 30,884.01 : x
2. Step 2: Convert to fraction form
   56,377.86/77,800.56 = 30,884.01/x
3. Step 3: Cross multiply
   56,377.86x = 77,800.56 × 30,884.01
4. Step 4: Simplify right side
   56,377.86x = 2,402,793,273.05
5. Step 5: Solve for x
   x = 2,402,793,273.05/56,377.86
6. Step 6: Final answer
   x = 42,619.45