Finding the Fourth Proportional to 112,997.73, 155,898.24 and 64,564.91

Step by Step Solution

1. Step 1: Write the proportion equation
   112,997.73 : 155,898.24 = 64,564.91 : x
2. Step 2: Convert to fraction form
   112,997.73/155,898.24 = 64,564.91/x
3. Step 3: Cross multiply
   112,997.73x = 155,898.24 × 64,564.91
4. Step 4: Simplify right side
   112,997.73x = 10,065,555,055.27
5. Step 5: Solve for x
   x = 10,065,555,055.27/112,997.73
6. Step 6: Final answer
   x = 89,077.50