Finding the Fourth Proportional to 112,369.83, 155,074.89 and 64,623.17

Step by Step Solution

1. Step 1: Write the proportion equation
   112,369.83 : 155,074.89 = 64,623.17 : x
2. Step 2: Convert to fraction form
   112,369.83/155,074.89 = 64,623.17/x
3. Step 3: Cross multiply
   112,369.83x = 155,074.89 × 64,623.17
4. Step 4: Simplify right side
   112,369.83x = 10,021,430,203.83
5. Step 5: Solve for x
   x = 10,021,430,203.83/112,369.83
6. Step 6: Final answer
   x = 89,182.57