Finding the Fourth Proportional to 64,908.05, 89,502.50 and 42,204.94

Step by Step Solution

1. Step 1: Write the proportion equation
   64,908.05 : 89,502.50 = 42,204.94 : x
2. Step 2: Convert to fraction form
   64,908.05/89,502.50 = 42,204.94/x
3. Step 3: Cross multiply
   64,908.05x = 89,502.50 × 42,204.94
4. Step 4: Simplify right side
   64,908.05x = 3,777,447,760.59
5. Step 5: Solve for x
   x = 3,777,447,760.59/64,908.05
6. Step 6: Final answer
   x = 58,196.90