Finding the Fourth Proportional to 76,109.09, 105,029.46 and 42,114.87

Step by Step Solution

1. Step 1: Write the proportion equation
   76,109.09 : 105,029.46 = 42,114.87 : x
2. Step 2: Convert to fraction form
   76,109.09/105,029.46 = 42,114.87/x
3. Step 3: Cross multiply
   76,109.09x = 105,029.46 × 42,114.87
4. Step 4: Simplify right side
   76,109.09x = 4,423,302,054.07
5. Step 5: Solve for x
   x = 4,423,302,054.07/76,109.09
6. Step 6: Final answer
   x = 58,117.92