Finding the Fourth Proportional to 76,250.10, 114,266.18 and 42,900.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,250.10 : 114,266.18 = 42,900.50 : x
2. Step 2: Convert to fraction form
   76,250.10/114,266.18 = 42,900.50/x
3. Step 3: Cross multiply
   76,250.10x = 114,266.18 × 42,900.50
4. Step 4: Simplify right side
   76,250.10x = 4,902,076,255.09
5. Step 5: Solve for x
   x = 4,902,076,255.09/76,250.10
6. Step 6: Final answer
   x = 64,289.44