Finding the Fourth Proportional to 42,870.16, 59,114.61 and 29,259.73

Step by Step Solution

1. Step 1: Write the proportion equation
   42,870.16 : 59,114.61 = 29,259.73 : x
2. Step 2: Convert to fraction form
   42,870.16/59,114.61 = 29,259.73/x
3. Step 3: Cross multiply
   42,870.16x = 59,114.61 × 29,259.73
4. Step 4: Simplify right side
   42,870.16x = 1,729,677,601.55
5. Step 5: Solve for x
   x = 1,729,677,601.55/42,870.16
6. Step 6: Final answer
   x = 40,346.89