Finding the Fourth Proportional to 52,688.24, 78,995.39 and 19,404.03

Step by Step Solution

1. Step 1: Write the proportion equation
   52,688.24 : 78,995.39 = 19,404.03 : x
2. Step 2: Convert to fraction form
   52,688.24/78,995.39 = 19,404.03/x
3. Step 3: Cross multiply
   52,688.24x = 78,995.39 × 19,404.03
4. Step 4: Simplify right side
   52,688.24x = 1,532,828,820.40
5. Step 5: Solve for x
   x = 1,532,828,820.40/52,688.24
6. Step 6: Final answer
   x = 29,092.43