Finding the Fourth Proportional to 98,326.80, 147,510.72 and 31,770.72

Step by Step Solution

1. Step 1: Write the proportion equation
   98,326.80 : 147,510.72 = 31,770.72 : x
2. Step 2: Convert to fraction form
   98,326.80/147,510.72 = 31,770.72/x
3. Step 3: Cross multiply
   98,326.80x = 147,510.72 × 31,770.72
4. Step 4: Simplify right side
   98,326.80x = 4,686,521,782.12
5. Step 5: Solve for x
   x = 4,686,521,782.12/98,326.80
6. Step 6: Final answer
   x = 47,662.71