Finding the Fourth Proportional to 112,562.53, 155,288.14 and 64,805.74

Step by Step Solution

1. Step 1: Write the proportion equation
   112,562.53 : 155,288.14 = 64,805.74 : x
2. Step 2: Convert to fraction form
   112,562.53/155,288.14 = 64,805.74/x
3. Step 3: Cross multiply
   112,562.53x = 155,288.14 × 64,805.74
4. Step 4: Simplify right side
   112,562.53x = 10,063,562,275.69
5. Step 5: Solve for x
   x = 10,063,562,275.69/112,562.53
6. Step 6: Final answer
   x = 89,404.20