Finding the Fourth Proportional to 42,789, 64,192.50 and 16,134.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,789 : 64,192.50 = 16,134.48 : x
2. Step 2: Convert to fraction form
   42,789/64,192.50 = 16,134.48/x
3. Step 3: Cross multiply
   42,789x = 64,192.50 × 16,134.48
4. Step 4: Simplify right side
   42,789x = 1,035,712,607.40
5. Step 5: Solve for x
   x = 1,035,712,607.40/42,789
6. Step 6: Final answer
   x = 24,205.11