Finding the Fourth Proportional to 112,460.19, 155,170.06 and 64,713.54

Step by Step Solution

1. Step 1: Write the proportion equation
   112,460.19 : 155,170.06 = 64,713.54 : x
2. Step 2: Convert to fraction form
   112,460.19/155,170.06 = 64,713.54/x
3. Step 3: Cross multiply
   112,460.19x = 155,170.06 × 64,713.54
4. Step 4: Simplify right side
   112,460.19x = 10,041,603,884.61
5. Step 5: Solve for x
   x = 10,041,603,884.61/112,460.19
6. Step 6: Final answer
   x = 89,290.30