Finding the Fourth Proportional to 107,112.90, 147,631.32 and 71,238.84

Step by Step Solution

1. Step 1: Write the proportion equation
   107,112.90 : 147,631.32 = 71,238.84 : x
2. Step 2: Convert to fraction form
   107,112.90/147,631.32 = 71,238.84/x
3. Step 3: Cross multiply
   107,112.90x = 147,631.32 × 71,238.84
4. Step 4: Simplify right side
   107,112.90x = 10,517,083,984.47
5. Step 5: Solve for x
   x = 10,517,083,984.47/107,112.90
6. Step 6: Final answer
   x = 98,186.90