Finding the Fourth Proportional to 56,529.77, 78,010.76 and 31,036.56

Step by Step Solution

1. Step 1: Write the proportion equation
   56,529.77 : 78,010.76 = 31,036.56 : x
2. Step 2: Convert to fraction form
   56,529.77/78,010.76 = 31,036.56/x
3. Step 3: Cross multiply
   56,529.77x = 78,010.76 × 31,036.56
4. Step 4: Simplify right side
   56,529.77x = 2,421,185,478.20
5. Step 5: Solve for x
   x = 2,421,185,478.20/56,529.77
6. Step 6: Final answer
   x = 42,830.28