Finding the Fourth Proportional to 21,098.88, 29,105.76 and 19,598.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,098.88 : 29,105.76 = 19,598.04 : x
2. Step 2: Convert to fraction form
   21,098.88/29,105.76 = 19,598.04/x
3. Step 3: Cross multiply
   21,098.88x = 29,105.76 × 19,598.04
4. Step 4: Simplify right side
   21,098.88x = 570,415,848.71
5. Step 5: Solve for x
   x = 570,415,848.71/21,098.88
6. Step 6: Final answer
   x = 27,035.36