Finding the Fourth Proportional to 76,325.86, 105,342.29 and 42,345.29

Step by Step Solution

1. Step 1: Write the proportion equation
   76,325.86 : 105,342.29 = 42,345.29 : x
2. Step 2: Convert to fraction form
   76,325.86/105,342.29 = 42,345.29/x
3. Step 3: Cross multiply
   76,325.86x = 105,342.29 × 42,345.29
4. Step 4: Simplify right side
   76,325.86x = 4,460,750,151.20
5. Step 5: Solve for x
   x = 4,460,750,151.20/76,325.86
6. Step 6: Final answer
   x = 58,443.50