Finding the Fourth Proportional to 76,437.52, 105,480.24 and 42,448.17

Step by Step Solution

1. Step 1: Write the proportion equation
   76,437.52 : 105,480.24 = 42,448.17 : x
2. Step 2: Convert to fraction form
   76,437.52/105,480.24 = 42,448.17/x
3. Step 3: Cross multiply
   76,437.52x = 105,480.24 × 42,448.17
4. Step 4: Simplify right side
   76,437.52x = 4,477,443,040.98
5. Step 5: Solve for x
   x = 4,477,443,040.98/76,437.52
6. Step 6: Final answer
   x = 58,576.51