Finding the Fourth Proportional to 77,981.84, 107,614.37 and 43,990.59

Step by Step Solution

1. Step 1: Write the proportion equation
   77,981.84 : 107,614.37 = 43,990.59 : x
2. Step 2: Convert to fraction form
   77,981.84/107,614.37 = 43,990.59/x
3. Step 3: Cross multiply
   77,981.84x = 107,614.37 × 43,990.59
4. Step 4: Simplify right side
   77,981.84x = 4,734,020,142.31
5. Step 5: Solve for x
   x = 4,734,020,142.31/77,981.84
6. Step 6: Final answer
   x = 60,706.70