Finding the Fourth Proportional to 112,416.52, 155,134.02 and 64,679.08

Step by Step Solution

1. Step 1: Write the proportion equation
   112,416.52 : 155,134.02 = 64,679.08 : x
2. Step 2: Convert to fraction form
   112,416.52/155,134.02 = 64,679.08/x
3. Step 3: Cross multiply
   112,416.52x = 155,134.02 × 64,679.08
4. Step 4: Simplify right side
   112,416.52x = 10,033,925,690.30
5. Step 5: Solve for x
   x = 10,033,925,690.30/112,416.52
6. Step 6: Final answer
   x = 89,256.68