Finding the Fourth Proportional to 83,160, 124,756.44 and 42,531.06

Step by Step Solution

1. Step 1: Write the proportion equation
   83,160 : 124,756.44 = 42,531.06 : x
2. Step 2: Convert to fraction form
   83,160/124,756.44 = 42,531.06/x
3. Step 3: Cross multiply
   83,160x = 124,756.44 × 42,531.06
4. Step 4: Simplify right side
   83,160x = 5,306,023,635.03
5. Step 5: Solve for x
   x = 5,306,023,635.03/83,160
6. Step 6: Final answer
   x = 63,805.00