Finding the Fourth Proportional to 76,467.69, 105,526.65 and 42,478.37

Step by Step Solution

1. Step 1: Write the proportion equation
   76,467.69 : 105,526.65 = 42,478.37 : x
2. Step 2: Convert to fraction form
   76,467.69/105,526.65 = 42,478.37/x
3. Step 3: Cross multiply
   76,467.69x = 105,526.65 × 42,478.37
4. Step 4: Simplify right side
   76,467.69x = 4,482,599,555.93
5. Step 5: Solve for x
   x = 4,482,599,555.93/76,467.69
6. Step 6: Final answer
   x = 58,620.83