Finding the Fourth Proportional to 64,713.12, 89,037 and 50,541.36

Step by Step Solution

1. Step 1: Write the proportion equation
   64,713.12 : 89,037 = 50,541.36 : x
2. Step 2: Convert to fraction form
   64,713.12/89,037 = 50,541.36/x
3. Step 3: Cross multiply
   64,713.12x = 89,037 × 50,541.36
4. Step 4: Simplify right side
   64,713.12x = 4,500,051,070.32
5. Step 5: Solve for x
   x = 4,500,051,070.32/64,713.12
6. Step 6: Final answer
   x = 69,538.47