Finding the Fourth Proportional to 31,010.10, 42,814.02 and 19,541.55

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.10 : 42,814.02 = 19,541.55 : x
2. Step 2: Convert to fraction form
   31,010.10/42,814.02 = 19,541.55/x
3. Step 3: Cross multiply
   31,010.10x = 42,814.02 × 19,541.55
4. Step 4: Simplify right side
   31,010.10x = 836,652,312.53
5. Step 5: Solve for x
   x = 836,652,312.53/31,010.10
6. Step 6: Final answer
   x = 26,979.99