Finding the Fourth Proportional to 42,971.76, 64,402.24 and 19,262

Step by Step Solution

1. Step 1: Write the proportion equation
   42,971.76 : 64,402.24 = 19,262 : x
2. Step 2: Convert to fraction form
   42,971.76/64,402.24 = 19,262/x
3. Step 3: Cross multiply
   42,971.76x = 64,402.24 × 19,262
4. Step 4: Simplify right side
   42,971.76x = 1,240,515,946.88
5. Step 5: Solve for x
   x = 1,240,515,946.88/42,971.76
6. Step 6: Final answer
   x = 28,868.17