Finding the Fourth Proportional to 42,553.86, 63,770.64 and 17,578.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,553.86 : 63,770.64 = 17,578.32 : x
2. Step 2: Convert to fraction form
   42,553.86/63,770.64 = 17,578.32/x
3. Step 3: Cross multiply
   42,553.86x = 63,770.64 × 17,578.32
4. Step 4: Simplify right side
   42,553.86x = 1,120,980,510.34
5. Step 5: Solve for x
   x = 1,120,980,510.34/42,553.86
6. Step 6: Final answer
   x = 26,342.63