Finding the Fourth Proportional to 130,066.72, 195,061.60 and 55,185.92

Step by Step Solution

1. Step 1: Write the proportion equation
   130,066.72 : 195,061.60 = 55,185.92 : x
2. Step 2: Convert to fraction form
   130,066.72/195,061.60 = 55,185.92/x
3. Step 3: Cross multiply
   130,066.72x = 195,061.60 × 55,185.92
4. Step 4: Simplify right side
   130,066.72x = 10,764,653,852.67
5. Step 5: Solve for x
   x = 10,764,653,852.67/130,066.72
6. Step 6: Final answer
   x = 82,762.55