Finding the Fourth Proportional to 102,556.62, 141,528.15 and 56,616.27

Step by Step Solution

1. Step 1: Write the proportion equation
   102,556.62 : 141,528.15 = 56,616.27 : x
2. Step 2: Convert to fraction form
   102,556.62/141,528.15 = 56,616.27/x
3. Step 3: Cross multiply
   102,556.62x = 141,528.15 × 56,616.27
4. Step 4: Simplify right side
   102,556.62x = 8,012,795,953.00
5. Step 5: Solve for x
   x = 8,012,795,953.00/102,556.62
6. Step 6: Final answer
   x = 78,130.46