Finding the Fourth Proportional to 76,518, 105,594.84 and 42,984

Step by Step Solution

1. Step 1: Write the proportion equation
   76,518 : 105,594.84 = 42,984 : x
2. Step 2: Convert to fraction form
   76,518/105,594.84 = 42,984/x
3. Step 3: Cross multiply
   76,518x = 105,594.84 × 42,984
4. Step 4: Simplify right side
   76,518x = 4,538,888,602.56
5. Step 5: Solve for x
   x = 4,538,888,602.56/76,518
6. Step 6: Final answer
   x = 59,317.92