Finding the Fourth Proportional to 60,186.40, 82,970.68 and 42,225.76

Step by Step Solution

1. Step 1: Write the proportion equation
   60,186.40 : 82,970.68 = 42,225.76 : x
2. Step 2: Convert to fraction form
   60,186.40/82,970.68 = 42,225.76/x
3. Step 3: Cross multiply
   60,186.40x = 82,970.68 × 42,225.76
4. Step 4: Simplify right side
   60,186.40x = 3,503,500,020.72
5. Step 5: Solve for x
   x = 3,503,500,020.72/60,186.40
6. Step 6: Final answer
   x = 58,210.83