Finding the Fourth Proportional to 31,068.51, 42,837.43 and 25,382.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,068.51 : 42,837.43 = 25,382.31 : x
2. Step 2: Convert to fraction form
   31,068.51/42,837.43 = 25,382.31/x
3. Step 3: Cross multiply
   31,068.51x = 42,837.43 × 25,382.31
4. Step 4: Simplify right side
   31,068.51x = 1,087,312,927.86
5. Step 5: Solve for x
   x = 1,087,312,927.86/31,068.51
6. Step 6: Final answer
   x = 34,997.27