Finding the Fourth Proportional to 56,560.30, 78,053.86 and 31,067.27

Step by Step Solution

1. Step 1: Write the proportion equation
   56,560.30 : 78,053.86 = 31,067.27 : x
2. Step 2: Convert to fraction form
   56,560.30/78,053.86 = 31,067.27/x
3. Step 3: Cross multiply
   56,560.30x = 78,053.86 × 31,067.27
4. Step 4: Simplify right side
   56,560.30x = 2,424,920,343.16
5. Step 5: Solve for x
   x = 2,424,920,343.16/56,560.30
6. Step 6: Final answer
   x = 42,873.19