Finding the Fourth Proportional to 42,192, 63,265.86 and 17,218.08

Step by Step Solution

1. Step 1: Write the proportion equation
   42,192 : 63,265.86 = 17,218.08 : x
2. Step 2: Convert to fraction form
   42,192/63,265.86 = 17,218.08/x
3. Step 3: Cross multiply
   42,192x = 63,265.86 × 17,218.08
4. Step 4: Simplify right side
   42,192x = 1,089,316,638.75
5. Step 5: Solve for x
   x = 1,089,316,638.75/42,192
6. Step 6: Final answer
   x = 25,818.08