Finding the Fourth Proportional to 31,820.50, 47,394.63 and 30,155.14

Step by Step Solution

1. Step 1: Write the proportion equation
   31,820.50 : 47,394.63 = 30,155.14 : x
2. Step 2: Convert to fraction form
   31,820.50/47,394.63 = 30,155.14/x
3. Step 3: Cross multiply
   31,820.50x = 47,394.63 × 30,155.14
4. Step 4: Simplify right side
   31,820.50x = 1,429,191,702.90
5. Step 5: Solve for x
   x = 1,429,191,702.90/31,820.50
6. Step 6: Final answer
   x = 44,914.18