Finding the Fourth Proportional to 42,925.14, 64,403.91 and 17,982

Step by Step Solution

1. Step 1: Write the proportion equation
   42,925.14 : 64,403.91 = 17,982 : x
2. Step 2: Convert to fraction form
   42,925.14/64,403.91 = 17,982/x
3. Step 3: Cross multiply
   42,925.14x = 64,403.91 × 17,982
4. Step 4: Simplify right side
   42,925.14x = 1,158,111,109.62
5. Step 5: Solve for x
   x = 1,158,111,109.62/42,925.14
6. Step 6: Final answer
   x = 26,979.79