Finding the Fourth Proportional to 93,825.30, 140,573.24 and 78,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   93,825.30 : 140,573.24 = 78,131.30 : x
2. Step 2: Convert to fraction form
   93,825.30/140,573.24 = 78,131.30/x
3. Step 3: Cross multiply
   93,825.30x = 140,573.24 × 78,131.30
4. Step 4: Simplify right side
   93,825.30x = 10,983,169,830.31
5. Step 5: Solve for x
   x = 10,983,169,830.31/93,825.30
6. Step 6: Final answer
   x = 117,059.79