Finding the Fourth Proportional to 42,997.48, 64,483.98 and 16,696.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,997.48 : 64,483.98 = 16,696.60 : x
2. Step 2: Convert to fraction form
   42,997.48/64,483.98 = 16,696.60/x
3. Step 3: Cross multiply
   42,997.48x = 64,483.98 × 16,696.60
4. Step 4: Simplify right side
   42,997.48x = 1,076,663,220.47
5. Step 5: Solve for x
   x = 1,076,663,220.47/42,997.48
6. Step 6: Final answer
   x = 25,040.15