Finding the Fourth Proportional to 77,317.50, 106,698.15 and 43,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   77,317.50 : 106,698.15 = 43,789.98 : x
2. Step 2: Convert to fraction form
   77,317.50/106,698.15 = 43,789.98/x
3. Step 3: Cross multiply
   77,317.50x = 106,698.15 × 43,789.98
4. Step 4: Simplify right side
   77,317.50x = 4,672,309,854.54
5. Step 5: Solve for x
   x = 4,672,309,854.54/77,317.50
6. Step 6: Final answer
   x = 60,430.17