Finding the Fourth Proportional to 59,301.56, 81,886.02 and 42,357.78

Step by Step Solution

1. Step 1: Write the proportion equation
   59,301.56 : 81,886.02 = 42,357.78 : x
2. Step 2: Convert to fraction form
   59,301.56/81,886.02 = 42,357.78/x
3. Step 3: Cross multiply
   59,301.56x = 81,886.02 × 42,357.78
4. Step 4: Simplify right side
   59,301.56x = 3,468,510,020.24
5. Step 5: Solve for x
   x = 3,468,510,020.24/59,301.56
6. Step 6: Final answer
   x = 58,489.36