Finding the Fourth Proportional to 58,870.40, 81,238.67 and 33,378.47

Step by Step Solution

1. Step 1: Write the proportion equation
   58,870.40 : 81,238.67 = 33,378.47 : x
2. Step 2: Convert to fraction form
   58,870.40/81,238.67 = 33,378.47/x
3. Step 3: Cross multiply
   58,870.40x = 81,238.67 × 33,378.47
4. Step 4: Simplify right side
   58,870.40x = 2,711,622,795.98
5. Step 5: Solve for x
   x = 2,711,622,795.98/58,870.40
6. Step 6: Final answer
   x = 46,060.89