Finding the Fourth Proportional to 52,610, 78,949.56 and 19,778

Step by Step Solution

1. Step 1: Write the proportion equation
   52,610 : 78,949.56 = 19,778 : x
2. Step 2: Convert to fraction form
   52,610/78,949.56 = 19,778/x
3. Step 3: Cross multiply
   52,610x = 78,949.56 × 19,778
4. Step 4: Simplify right side
   52,610x = 1,561,464,397.68
5. Step 5: Solve for x
   x = 1,561,464,397.68/52,610
6. Step 6: Final answer
   x = 29,679.99