Finding the Fourth Proportional to 77,401.52, 106,815.30 and 43,417.55

Step by Step Solution

1. Step 1: Write the proportion equation
   77,401.52 : 106,815.30 = 43,417.55 : x
2. Step 2: Convert to fraction form
   77,401.52/106,815.30 = 43,417.55/x
3. Step 3: Cross multiply
   77,401.52x = 106,815.30 × 43,417.55
4. Step 4: Simplify right side
   77,401.52x = 4,637,658,628.52
5. Step 5: Solve for x
   x = 4,637,658,628.52/77,401.52
6. Step 6: Final answer
   x = 59,916.89