Finding the Fourth Proportional to 52,300.08, 72,175.86 and 31,100.76

Step by Step Solution

1. Step 1: Write the proportion equation
   52,300.08 : 72,175.86 = 31,100.76 : x
2. Step 2: Convert to fraction form
   52,300.08/72,175.86 = 31,100.76/x
3. Step 3: Cross multiply
   52,300.08x = 72,175.86 × 31,100.76
4. Step 4: Simplify right side
   52,300.08x = 2,244,724,099.65
5. Step 5: Solve for x
   x = 2,244,724,099.65/52,300.08
6. Step 6: Final answer
   x = 42,920.09