Finding the Fourth Proportional to 42,099.70, 58,118.61 and 26,189.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,099.70 : 58,118.61 = 26,189.32 : x
2. Step 2: Convert to fraction form
   42,099.70/58,118.61 = 26,189.32/x
3. Step 3: Cross multiply
   42,099.70x = 58,118.61 × 26,189.32
4. Step 4: Simplify right side
   42,099.70x = 1,522,086,875.25
5. Step 5: Solve for x
   x = 1,522,086,875.25/42,099.70
6. Step 6: Final answer
   x = 36,154.34