Finding the Fourth Proportional to 76,116.18, 105,037.74 and 42,126.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,116.18 : 105,037.74 = 42,126.10 : x
2. Step 2: Convert to fraction form
   76,116.18/105,037.74 = 42,126.10/x
3. Step 3: Cross multiply
   76,116.18x = 105,037.74 × 42,126.10
4. Step 4: Simplify right side
   76,116.18x = 4,424,830,339.01
5. Step 5: Solve for x
   x = 4,424,830,339.01/76,116.18
6. Step 6: Final answer
   x = 58,132.59