Finding the Fourth Proportional to 42,930.77, 64,388.86 and 11,341.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,930.77 : 64,388.86 = 11,341.17 : x
2. Step 2: Convert to fraction form
   42,930.77/64,388.86 = 11,341.17/x
3. Step 3: Cross multiply
   42,930.77x = 64,388.86 × 11,341.17
4. Step 4: Simplify right side
   42,930.77x = 730,244,979.01
5. Step 5: Solve for x
   x = 730,244,979.01/42,930.77
6. Step 6: Final answer
   x = 17,009.83