Finding the Fourth Proportional to 110,205.30, 152,089.46 and 64,872.89

Step by Step Solution

1. Step 1: Write the proportion equation
   110,205.30 : 152,089.46 = 64,872.89 : x
2. Step 2: Convert to fraction form
   110,205.30/152,089.46 = 64,872.89/x
3. Step 3: Cross multiply
   110,205.30x = 152,089.46 × 64,872.89
4. Step 4: Simplify right side
   110,205.30x = 9,866,482,808.74
5. Step 5: Solve for x
   x = 9,866,482,808.74/110,205.30
6. Step 6: Final answer
   x = 89,528.21