Finding the Fourth Proportional to 64,838.79, 89,477.55 and 35,030.79

Step by Step Solution

1. Step 1: Write the proportion equation
   64,838.79 : 89,477.55 = 35,030.79 : x
2. Step 2: Convert to fraction form
   64,838.79/89,477.55 = 35,030.79/x
3. Step 3: Cross multiply
   64,838.79x = 89,477.55 × 35,030.79
4. Step 4: Simplify right side
   64,838.79x = 3,134,469,263.76
5. Step 5: Solve for x
   x = 3,134,469,263.76/64,838.79
6. Step 6: Final answer
   x = 48,342.50