Finding the Fourth Proportional to 93,559.72, 140,374.50 and 56,146.63

Step by Step Solution

1. Step 1: Write the proportion equation
   93,559.72 : 140,374.50 = 56,146.63 : x
2. Step 2: Convert to fraction form
   93,559.72/140,374.50 = 56,146.63/x
3. Step 3: Cross multiply
   93,559.72x = 140,374.50 × 56,146.63
4. Step 4: Simplify right side
   93,559.72x = 7,881,555,112.94
5. Step 5: Solve for x
   x = 7,881,555,112.94/93,559.72
6. Step 6: Final answer
   x = 84,240.90