Finding the Fourth Proportional to 112,644.52, 155,484.06 and 64,929.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,644.52 : 155,484.06 = 64,929.76 : x
2. Step 2: Convert to fraction form
   112,644.52/155,484.06 = 64,929.76/x
3. Step 3: Cross multiply
   112,644.52x = 155,484.06 × 64,929.76
4. Step 4: Simplify right side
   112,644.52x = 10,095,542,699.63
5. Step 5: Solve for x
   x = 10,095,542,699.63/112,644.52
6. Step 6: Final answer
   x = 89,623.03