Finding the Fourth Proportional to 52,338.83, 78,445.69 and 19,019.88

Step by Step Solution

1. Step 1: Write the proportion equation
   52,338.83 : 78,445.69 = 19,019.88 : x
2. Step 2: Convert to fraction form
   52,338.83/78,445.69 = 19,019.88/x
3. Step 3: Cross multiply
   52,338.83x = 78,445.69 × 19,019.88
4. Step 4: Simplify right side
   52,338.83x = 1,492,027,610.32
5. Step 5: Solve for x
   x = 1,492,027,610.32/52,338.83
6. Step 6: Final answer
   x = 28,507.09