Finding the Fourth Proportional to 76,112.06, 105,032.06 and 42,122

Step by Step Solution

1. Step 1: Write the proportion equation
   76,112.06 : 105,032.06 = 42,122 : x
2. Step 2: Convert to fraction form
   76,112.06/105,032.06 = 42,122/x
3. Step 3: Cross multiply
   76,112.06x = 105,032.06 × 42,122
4. Step 4: Simplify right side
   76,112.06x = 4,424,160,431.32
5. Step 5: Solve for x
   x = 4,424,160,431.32/76,112.06
6. Step 6: Final answer
   x = 58,126.93