Finding the Fourth Proportional to 112,164.84, 154,777.50 and 64,413.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,164.84 : 154,777.50 = 64,413.72 : x
2. Step 2: Convert to fraction form
   112,164.84/154,777.50 = 64,413.72/x
3. Step 3: Cross multiply
   112,164.84x = 154,777.50 × 64,413.72
4. Step 4: Simplify right side
   112,164.84x = 9,969,794,547.30
5. Step 5: Solve for x
   x = 9,969,794,547.30/112,164.84
6. Step 6: Final answer
   x = 88,885.20