Finding the Fourth Proportional to 93,542.32, 140,320.72 and 31,212.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,542.32 : 140,320.72 = 31,212.72 : x
2. Step 2: Convert to fraction form
   93,542.32/140,320.72 = 31,212.72/x
3. Step 3: Cross multiply
   93,542.32x = 140,320.72 × 31,212.72
4. Step 4: Simplify right side
   93,542.32x = 4,379,791,343.56
5. Step 5: Solve for x
   x = 4,379,791,343.56/93,542.32
6. Step 6: Final answer
   x = 46,821.50