Finding the Fourth Proportional to 42,916.83, 64,384.52 and 17,616.40

Step by Step Solution

1. Step 1: Write the proportion equation
   42,916.83 : 64,384.52 = 17,616.40 : x
2. Step 2: Convert to fraction form
   42,916.83/64,384.52 = 17,616.40/x
3. Step 3: Cross multiply
   42,916.83x = 64,384.52 × 17,616.40
4. Step 4: Simplify right side
   42,916.83x = 1,134,223,458.13
5. Step 5: Solve for x
   x = 1,134,223,458.13/42,916.83
6. Step 6: Final answer
   x = 26,428.41