Finding the Fourth Proportional to 64,896.50, 89,557.26 and 35,088.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,896.50 : 89,557.26 = 35,088.50 : x
2. Step 2: Convert to fraction form
   64,896.50/89,557.26 = 35,088.50/x
3. Step 3: Cross multiply
   64,896.50x = 89,557.26 × 35,088.50
4. Step 4: Simplify right side
   64,896.50x = 3,142,429,917.51
5. Step 5: Solve for x
   x = 3,142,429,917.51/64,896.50
6. Step 6: Final answer
   x = 48,422.18