Finding the Fourth Proportional to 52,669.67, 78,967.62 and 19,385.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,669.67 : 78,967.62 = 19,385.42 : x
2. Step 2: Convert to fraction form
   52,669.67/78,967.62 = 19,385.42/x
3. Step 3: Cross multiply
   52,669.67x = 78,967.62 × 19,385.42
4. Step 4: Simplify right side
   52,669.67x = 1,530,820,677.52
5. Step 5: Solve for x
   x = 1,530,820,677.52/52,669.67
6. Step 6: Final answer
   x = 29,064.56