Finding the Fourth Proportional to 116,262, 174,418.92 and 42,390

Step by Step Solution

1. Step 1: Write the proportion equation
   116,262 : 174,418.92 = 42,390 : x
2. Step 2: Convert to fraction form
   116,262/174,418.92 = 42,390/x
3. Step 3: Cross multiply
   116,262x = 174,418.92 × 42,390
4. Step 4: Simplify right side
   116,262x = 7,393,618,018.80
5. Step 5: Solve for x
   x = 7,393,618,018.80/116,262
6. Step 6: Final answer
   x = 63,594.45