Finding the Fourth Proportional to 93,540.32, 140,317.72 and 31,210.72

Step by Step Solution

1. Step 1: Write the proportion equation
   93,540.32 : 140,317.72 = 31,210.72 : x
2. Step 2: Convert to fraction form
   93,540.32/140,317.72 = 31,210.72/x
3. Step 3: Cross multiply
   93,540.32x = 140,317.72 × 31,210.72
4. Step 4: Simplify right side
   93,540.32x = 4,379,417,069.96
5. Step 5: Solve for x
   x = 4,379,417,069.96/93,540.32
6. Step 6: Final answer
   x = 46,818.50