Finding the Fourth Proportional to 42,086.79, 63,101.01 and 15,784.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086.79 : 63,101.01 = 15,784.47 : x
2. Step 2: Convert to fraction form
   42,086.79/63,101.01 = 15,784.47/x
3. Step 3: Cross multiply
   42,086.79x = 63,101.01 × 15,784.47
4. Step 4: Simplify right side
   42,086.79x = 996,015,999.31
5. Step 5: Solve for x
   x = 996,015,999.31/42,086.79
6. Step 6: Final answer
   x = 23,665.76