Finding the Fourth Proportional to 76,580.82, 105,686.37 and 43,048.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,580.82 : 105,686.37 = 43,048.98 : x
2. Step 2: Convert to fraction form
   76,580.82/105,686.37 = 43,048.98/x
3. Step 3: Cross multiply
   76,580.82x = 105,686.37 × 43,048.98
4. Step 4: Simplify right side
   76,580.82x = 4,549,690,428.40
5. Step 5: Solve for x
   x = 4,549,690,428.40/76,580.82
6. Step 6: Final answer
   x = 59,410.31