Finding the Fourth Proportional to 112,649.52, 155,490.96 and 64,934.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,649.52 : 155,490.96 = 64,934.76 : x
2. Step 2: Convert to fraction form
   112,649.52/155,490.96 = 64,934.76/x
3. Step 3: Cross multiply
   112,649.52x = 155,490.96 × 64,934.76
4. Step 4: Simplify right side
   112,649.52x = 10,096,768,169.77
5. Step 5: Solve for x
   x = 10,096,768,169.77/112,649.52
6. Step 6: Final answer
   x = 89,629.93