Finding the Fourth Proportional to 56,819.15, 78,410.93 and 31,326.42

Step by Step Solution

1. Step 1: Write the proportion equation
   56,819.15 : 78,410.93 = 31,326.42 : x
2. Step 2: Convert to fraction form
   56,819.15/78,410.93 = 31,326.42/x
3. Step 3: Cross multiply
   56,819.15x = 78,410.93 × 31,326.42
4. Step 4: Simplify right side
   56,819.15x = 2,456,333,725.77
5. Step 5: Solve for x
   x = 2,456,333,725.77/56,819.15
6. Step 6: Final answer
   x = 43,230.74