Finding the Fourth Proportional to 65,188.24, 89,961.06 and 42,541.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,188.24 : 89,961.06 = 42,541.72 : x
2. Step 2: Convert to fraction form
   65,188.24/89,961.06 = 42,541.72/x
3. Step 3: Cross multiply
   65,188.24x = 89,961.06 × 42,541.72
4. Step 4: Simplify right side
   65,188.24x = 3,827,098,225.42
5. Step 5: Solve for x
   x = 3,827,098,225.42/65,188.24
6. Step 6: Final answer
   x = 58,708.41