Finding the Fourth Proportional to 94,699.32, 130,568.94 and 76,728.12

Step by Step Solution

1. Step 1: Write the proportion equation
   94,699.32 : 130,568.94 = 76,728.12 : x
2. Step 2: Convert to fraction form
   94,699.32/130,568.94 = 76,728.12/x
3. Step 3: Cross multiply
   94,699.32x = 130,568.94 × 76,728.12
4. Step 4: Simplify right side
   94,699.32x = 10,018,309,296.59
5. Step 5: Solve for x
   x = 10,018,309,296.59/94,699.32
6. Step 6: Final answer
   x = 105,790.72