Finding the Fourth Proportional to 56,529.50, 78,010.71 and 31,381.34

Step by Step Solution

1. Step 1: Write the proportion equation
   56,529.50 : 78,010.71 = 31,381.34 : x
2. Step 2: Convert to fraction form
   56,529.50/78,010.71 = 31,381.34/x
3. Step 3: Cross multiply
   56,529.50x = 78,010.71 × 31,381.34
4. Step 4: Simplify right side
   56,529.50x = 2,448,080,614.15
5. Step 5: Solve for x
   x = 2,448,080,614.15/56,529.50
6. Step 6: Final answer
   x = 43,306.25