Finding the Fourth Proportional to 72,937.10, 109,417.18 and 31,384.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,937.10 : 109,417.18 = 31,384.46 : x
2. Step 2: Convert to fraction form
   72,937.10/109,417.18 = 31,384.46/x
3. Step 3: Cross multiply
   72,937.10x = 109,417.18 × 31,384.46
4. Step 4: Simplify right side
   72,937.10x = 3,433,999,109.02
5. Step 5: Solve for x
   x = 3,433,999,109.02/72,937.10
6. Step 6: Final answer
   x = 47,081.65