Finding the Fourth Proportional to 31,157.76, 46,662.15 and 17,970.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,157.76 : 46,662.15 = 17,970.15 : x
2. Step 2: Convert to fraction form
   31,157.76/46,662.15 = 17,970.15/x
3. Step 3: Cross multiply
   31,157.76x = 46,662.15 × 17,970.15
4. Step 4: Simplify right side
   31,157.76x = 838,526,026.65
5. Step 5: Solve for x
   x = 838,526,026.65/31,157.76
6. Step 6: Final answer
   x = 26,912.27