Finding the Fourth Proportional to 42,699.50, 64,041.98 and 11,527.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,699.50 : 64,041.98 = 11,527.46 : x
2. Step 2: Convert to fraction form
   42,699.50/64,041.98 = 11,527.46/x
3. Step 3: Cross multiply
   42,699.50x = 64,041.98 × 11,527.46
4. Step 4: Simplify right side
   42,699.50x = 738,241,071.38
5. Step 5: Solve for x
   x = 738,241,071.38/42,699.50
6. Step 6: Final answer
   x = 17,289.22