Finding the Fourth Proportional to 102,928.96, 142,077 and 60,500.08

Step by Step Solution

1. Step 1: Write the proportion equation
   102,928.96 : 142,077 = 60,500.08 : x
2. Step 2: Convert to fraction form
   102,928.96/142,077 = 60,500.08/x
3. Step 3: Cross multiply
   102,928.96x = 142,077 × 60,500.08
4. Step 4: Simplify right side
   102,928.96x = 8,595,669,866.16
5. Step 5: Solve for x
   x = 8,595,669,866.16/102,928.96
6. Step 6: Final answer
   x = 83,510.70