Finding the Fourth Proportional to 42,499.46, 63,690.86 and 26,889.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,499.46 : 63,690.86 = 26,889.14 : x
2. Step 2: Convert to fraction form
   42,499.46/63,690.86 = 26,889.14/x
3. Step 3: Cross multiply
   42,499.46x = 63,690.86 × 26,889.14
4. Step 4: Simplify right side
   42,499.46x = 1,712,592,200.03
5. Step 5: Solve for x
   x = 1,712,592,200.03/42,499.46
6. Step 6: Final answer
   x = 40,296.80