Finding the Fourth Proportional to 112,501.62, 155,259.72 and 64,766.70

Step by Step Solution

1. Step 1: Write the proportion equation
   112,501.62 : 155,259.72 = 64,766.70 : x
2. Step 2: Convert to fraction form
   112,501.62/155,259.72 = 64,766.70/x
3. Step 3: Cross multiply
   112,501.62x = 155,259.72 × 64,766.70
4. Step 4: Simplify right side
   112,501.62x = 10,055,659,707.32
5. Step 5: Solve for x
   x = 10,055,659,707.32/112,501.62
6. Step 6: Final answer
   x = 89,382.35