Finding the Fourth Proportional to 42,649.62, 63,981.59 and 13,060.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,649.62 : 63,981.59 = 13,060.32 : x
2. Step 2: Convert to fraction form
   42,649.62/63,981.59 = 13,060.32/x
3. Step 3: Cross multiply
   42,649.62x = 63,981.59 × 13,060.32
4. Step 4: Simplify right side
   42,649.62x = 835,619,974.21
5. Step 5: Solve for x
   x = 835,619,974.21/42,649.62
6. Step 6: Final answer
   x = 19,592.67