Finding the Fourth Proportional to 76,112.02, 105,030.84 and 42,119.88

Step by Step Solution

1. Step 1: Write the proportion equation
   76,112.02 : 105,030.84 = 42,119.88 : x
2. Step 2: Convert to fraction form
   76,112.02/105,030.84 = 42,119.88/x
3. Step 3: Cross multiply
   76,112.02x = 105,030.84 × 42,119.88
4. Step 4: Simplify right side
   76,112.02x = 4,423,886,377.10
5. Step 5: Solve for x
   x = 4,423,886,377.10/76,112.02
6. Step 6: Final answer
   x = 58,123.36