Finding the Fourth Proportional to 112,209.50, 154,856.00 and 64,470.03

Step by Step Solution

1. Step 1: Write the proportion equation
   112,209.50 : 154,856.00 = 64,470.03 : x
2. Step 2: Convert to fraction form
   112,209.50/154,856.00 = 64,470.03/x
3. Step 3: Cross multiply
   112,209.50x = 154,856.00 × 64,470.03
4. Step 4: Simplify right side
   112,209.50x = 9,983,570,546.15
5. Step 5: Solve for x
   x = 9,983,570,546.15/112,209.50
6. Step 6: Final answer
   x = 88,972.59