Finding the Fourth Proportional to 42,890.84, 59,179.80 and 25,897.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,890.84 : 59,179.80 = 25,897.88 : x
2. Step 2: Convert to fraction form
   42,890.84/59,179.80 = 25,897.88/x
3. Step 3: Cross multiply
   42,890.84x = 59,179.80 × 25,897.88
4. Step 4: Simplify right side
   42,890.84x = 1,532,631,358.82
5. Step 5: Solve for x
   x = 1,532,631,358.82/42,890.84
6. Step 6: Final answer
   x = 35,733.30