Finding the Fourth Proportional to 76,089.30, 105,002.28 and 42,095.13

Step by Step Solution

1. Step 1: Write the proportion equation
   76,089.30 : 105,002.28 = 42,095.13 : x
2. Step 2: Convert to fraction form
   76,089.30/105,002.28 = 42,095.13/x
3. Step 3: Cross multiply
   76,089.30x = 105,002.28 × 42,095.13
4. Step 4: Simplify right side
   76,089.30x = 4,420,084,626.90
5. Step 5: Solve for x
   x = 4,420,084,626.90/76,089.30
6. Step 6: Final answer
   x = 58,090.75