Finding the Fourth Proportional to 112,477.59, 155,225.88 and 64,729.89

Step by Step Solution

1. Step 1: Write the proportion equation
   112,477.59 : 155,225.88 = 64,729.89 : x
2. Step 2: Convert to fraction form
   112,477.59/155,225.88 = 64,729.89/x
3. Step 3: Cross multiply
   112,477.59x = 155,225.88 × 64,729.89
4. Step 4: Simplify right side
   112,477.59x = 10,047,754,137.55
5. Step 5: Solve for x
   x = 10,047,754,137.55/112,477.59
6. Step 6: Final answer
   x = 89,331.16