Finding the Fourth Proportional to 19,921.69, 29,875.56 and 5,877.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,921.69 : 29,875.56 = 5,877.98 : x
2. Step 2: Convert to fraction form
   19,921.69/29,875.56 = 5,877.98/x
3. Step 3: Cross multiply
   19,921.69x = 29,875.56 × 5,877.98
4. Step 4: Simplify right side
   19,921.69x = 175,608,034.16
5. Step 5: Solve for x
   x = 175,608,034.16/19,921.69
6. Step 6: Final answer
   x = 8,814.92