Finding the Fourth Proportional to 87,066.27, 130,599.43 and 57,477.18

Step by Step Solution

1. Step 1: Write the proportion equation
   87,066.27 : 130,599.43 = 57,477.18 : x
2. Step 2: Convert to fraction form
   87,066.27/130,599.43 = 57,477.18/x
3. Step 3: Cross multiply
   87,066.27x = 130,599.43 × 57,477.18
4. Step 4: Simplify right side
   87,066.27x = 7,506,487,011.27
5. Step 5: Solve for x
   x = 7,506,487,011.27/87,066.27
6. Step 6: Final answer
   x = 86,215.79