Finding the Fourth Proportional to 76,437.87, 105,480.71 and 42,448.52

Step by Step Solution

1. Step 1: Write the proportion equation
   76,437.87 : 105,480.71 = 42,448.52 : x
2. Step 2: Convert to fraction form
   76,437.87/105,480.71 = 42,448.52/x
3. Step 3: Cross multiply
   76,437.87x = 105,480.71 × 42,448.52
4. Step 4: Simplify right side
   76,437.87x = 4,477,499,606.77
5. Step 5: Solve for x
   x = 4,477,499,606.77/76,437.87
6. Step 6: Final answer
   x = 58,576.98