Finding the Fourth Proportional to 76,358.31, 105,380.24 and 42,373.23

Step by Step Solution

1. Step 1: Write the proportion equation
   76,358.31 : 105,380.24 = 42,373.23 : x
2. Step 2: Convert to fraction form
   76,358.31/105,380.24 = 42,373.23/x
3. Step 3: Cross multiply
   76,358.31x = 105,380.24 × 42,373.23
4. Step 4: Simplify right side
   76,358.31x = 4,465,301,146.98
5. Step 5: Solve for x
   x = 4,465,301,146.98/76,358.31
6. Step 6: Final answer
   x = 58,478.26