Finding the Fourth Proportional to 118,042.50, 162,898.65 and 65,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,042.50 : 162,898.65 = 65,050.50 : x
2. Step 2: Convert to fraction form
   118,042.50/162,898.65 = 65,050.50/x
3. Step 3: Cross multiply
   118,042.50x = 162,898.65 × 65,050.50
4. Step 4: Simplify right side
   118,042.50x = 10,596,638,631.83
5. Step 5: Solve for x
   x = 10,596,638,631.83/118,042.50
6. Step 6: Final answer
   x = 89,769.69