Finding the Fourth Proportional to 76,907.10, 106,131.63 and 42,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,907.10 : 106,131.63 = 42,913.50 : x
2. Step 2: Convert to fraction form
   76,907.10/106,131.63 = 42,913.50/x
3. Step 3: Cross multiply
   76,907.10x = 106,131.63 × 42,913.50
4. Step 4: Simplify right side
   76,907.10x = 4,554,479,704.01
5. Step 5: Solve for x
   x = 4,554,479,704.01/76,907.10
6. Step 6: Final answer
   x = 59,220.54