Finding the Fourth Proportional to 42,731.01, 64,088.96 and 11,568.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,731.01 : 64,088.96 = 11,568.69 : x
2. Step 2: Convert to fraction form
   42,731.01/64,088.96 = 11,568.69/x
3. Step 3: Cross multiply
   42,731.01x = 64,088.96 × 11,568.69
4. Step 4: Simplify right side
   42,731.01x = 741,425,252.82
5. Step 5: Solve for x
   x = 741,425,252.82/42,731.01
6. Step 6: Final answer
   x = 17,350.99