Finding the Fourth Proportional to 78,437.99, 108,244.38 and 42,628.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,437.99 : 108,244.38 = 42,628.01 : x
2. Step 2: Convert to fraction form
   78,437.99/108,244.38 = 42,628.01/x
3. Step 3: Cross multiply
   78,437.99x = 108,244.38 × 42,628.01
4. Step 4: Simplify right side
   78,437.99x = 4,614,241,772.04
5. Step 5: Solve for x
   x = 4,614,241,772.04/78,437.99
6. Step 6: Final answer
   x = 58,826.62