Finding the Fourth Proportional to 87,475.49, 130,530.71 and 78,050.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,475.49 : 130,530.71 = 78,050.69 : x
2. Step 2: Convert to fraction form
   87,475.49/130,530.71 = 78,050.69/x
3. Step 3: Cross multiply
   87,475.49x = 130,530.71 × 78,050.69
4. Step 4: Simplify right side
   87,475.49x = 10,188,010,938.78
5. Step 5: Solve for x
   x = 10,188,010,938.78/87,475.49
6. Step 6: Final answer
   x = 116,467.04