Finding the Fourth Proportional to 93,642.72, 140,434.86 and 31,298.64

Step by Step Solution

1. Step 1: Write the proportion equation
   93,642.72 : 140,434.86 = 31,298.64 : x
2. Step 2: Convert to fraction form
   93,642.72/140,434.86 = 31,298.64/x
3. Step 3: Cross multiply
   93,642.72x = 140,434.86 × 31,298.64
4. Step 4: Simplify right side
   93,642.72x = 4,395,420,126.59
5. Step 5: Solve for x
   x = 4,395,420,126.59/93,642.72
6. Step 6: Final answer
   x = 46,938.19