Finding the Fourth Proportional to 112,940.02, 155,851.59 and 65,190.52

Step by Step Solution

1. Step 1: Write the proportion equation
   112,940.02 : 155,851.59 = 65,190.52 : x
2. Step 2: Convert to fraction form
   112,940.02/155,851.59 = 65,190.52/x
3. Step 3: Cross multiply
   112,940.02x = 155,851.59 × 65,190.52
4. Step 4: Simplify right side
   112,940.02x = 10,160,046,194.93
5. Step 5: Solve for x
   x = 10,160,046,194.93/112,940.02
6. Step 6: Final answer
   x = 89,959.66