Finding the Fourth Proportional to 93,889.89, 140,647.23 and 56,429.73

Step by Step Solution

1. Step 1: Write the proportion equation
   93,889.89 : 140,647.23 = 56,429.73 : x
2. Step 2: Convert to fraction form
   93,889.89/140,647.23 = 56,429.73/x
3. Step 3: Cross multiply
   93,889.89x = 140,647.23 × 56,429.73
4. Step 4: Simplify right side
   93,889.89x = 7,936,685,214.15
5. Step 5: Solve for x
   x = 7,936,685,214.15/93,889.89
6. Step 6: Final answer
   x = 84,531.84