Finding the Fourth Proportional to 65,231.76, 89,931.96 and 42,525.84

Step by Step Solution

1. Step 1: Write the proportion equation
   65,231.76 : 89,931.96 = 42,525.84 : x
2. Step 2: Convert to fraction form
   65,231.76/89,931.96 = 42,525.84/x
3. Step 3: Cross multiply
   65,231.76x = 89,931.96 × 42,525.84
4. Step 4: Simplify right side
   65,231.76x = 3,824,432,141.85
5. Step 5: Solve for x
   x = 3,824,432,141.85/65,231.76
6. Step 6: Final answer
   x = 58,628.38