Finding the Fourth Proportional to 56,574.74, 78,074.43 and 31,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,574.74 : 78,074.43 = 31,081.50 : x
2. Step 2: Convert to fraction form
   56,574.74/78,074.43 = 31,081.50/x
3. Step 3: Cross multiply
   56,574.74x = 78,074.43 × 31,081.50
4. Step 4: Simplify right side
   56,574.74x = 2,426,670,396.05
5. Step 5: Solve for x
   x = 2,426,670,396.05/56,574.74
6. Step 6: Final answer
   x = 42,893.18