Finding the Fourth Proportional to 112,866.96, 155,761.46 and 64,473.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,866.96 : 155,761.46 = 64,473.10 : x
2. Step 2: Convert to fraction form
   112,866.96/155,761.46 = 64,473.10/x
3. Step 3: Cross multiply
   112,866.96x = 155,761.46 × 64,473.10
4. Step 4: Simplify right side
   112,866.96x = 10,042,424,186.73
5. Step 5: Solve for x
   x = 10,042,424,186.73/112,866.96
6. Step 6: Final answer
   x = 88,975.77