Finding the Fourth Proportional to 100,271.52, 138,374.72 and 59,986.96

Step by Step Solution

1. Step 1: Write the proportion equation
   100,271.52 : 138,374.72 = 59,986.96 : x
2. Step 2: Convert to fraction form
   100,271.52/138,374.72 = 59,986.96/x
3. Step 3: Cross multiply
   100,271.52x = 138,374.72 × 59,986.96
4. Step 4: Simplify right side
   100,271.52x = 8,300,678,793.65
5. Step 5: Solve for x
   x = 8,300,678,793.65/100,271.52
6. Step 6: Final answer
   x = 82,782.02