Finding the Fourth Proportional to 112,360.06, 155,016.59 and 66,410.07

Step by Step Solution

1. Step 1: Write the proportion equation
   112,360.06 : 155,016.59 = 66,410.07 : x
2. Step 2: Convert to fraction form
   112,360.06/155,016.59 = 66,410.07/x
3. Step 3: Cross multiply
   112,360.06x = 155,016.59 × 66,410.07
4. Step 4: Simplify right side
   112,360.06x = 10,294,662,593.06
5. Step 5: Solve for x
   x = 10,294,662,593.06/112,360.06
6. Step 6: Final answer
   x = 91,622.08