Finding the Fourth Proportional to 56,417.86, 77,856.24 and 30,924.10

Step by Step Solution

1. Step 1: Write the proportion equation
   56,417.86 : 77,856.24 = 30,924.10 : x
2. Step 2: Convert to fraction form
   56,417.86/77,856.24 = 30,924.10/x
3. Step 3: Cross multiply
   56,417.86x = 77,856.24 × 30,924.10
4. Step 4: Simplify right side
   56,417.86x = 2,407,634,151.38
5. Step 5: Solve for x
   x = 2,407,634,151.38/56,417.86
6. Step 6: Final answer
   x = 42,675.04