Finding the Fourth Proportional to 52,355.98, 78,540.72 and 19,070.92

Step by Step Solution

1. Step 1: Write the proportion equation
   52,355.98 : 78,540.72 = 19,070.92 : x
2. Step 2: Convert to fraction form
   52,355.98/78,540.72 = 19,070.92/x
3. Step 3: Cross multiply
   52,355.98x = 78,540.72 × 19,070.92
4. Step 4: Simplify right side
   52,355.98x = 1,497,843,787.86
5. Step 5: Solve for x
   x = 1,497,843,787.86/52,355.98
6. Step 6: Final answer
   x = 28,608.84