Finding the Fourth Proportional to 139,496.08, 209,271.04 and 59,532.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,496.08 : 209,271.04 = 59,532.88 : x
2. Step 2: Convert to fraction form
   139,496.08/209,271.04 = 59,532.88/x
3. Step 3: Cross multiply
   139,496.08x = 209,271.04 × 59,532.88
4. Step 4: Simplify right side
   139,496.08x = 12,458,506,665.44
5. Step 5: Solve for x
   x = 12,458,506,665.44/139,496.08
6. Step 6: Final answer
   x = 89,310.80