Finding the Fourth Proportional to 42,802.72, 64,201.20 and 15,100.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,802.72 : 64,201.20 = 15,100.32 : x
2. Step 2: Convert to fraction form
   42,802.72/64,201.20 = 15,100.32/x
3. Step 3: Cross multiply
   42,802.72x = 64,201.20 × 15,100.32
4. Step 4: Simplify right side
   42,802.72x = 969,458,664.38
5. Step 5: Solve for x
   x = 969,458,664.38/42,802.72
6. Step 6: Final answer
   x = 22,649.46