Finding the Fourth Proportional to 83,724.89, 115,541.56 and 45,485.12

Step by Step Solution

1. Step 1: Write the proportion equation
   83,724.89 : 115,541.56 = 45,485.12 : x
2. Step 2: Convert to fraction form
   83,724.89/115,541.56 = 45,485.12/x
3. Step 3: Cross multiply
   83,724.89x = 115,541.56 × 45,485.12
4. Step 4: Simplify right side
   83,724.89x = 5,255,421,870.26
5. Step 5: Solve for x
   x = 5,255,421,870.26/83,724.89
6. Step 6: Final answer
   x = 62,770.13