Finding the Fourth Proportional to 83,965.61, 115,870.30 and 45,724.40

Step by Step Solution

1. Step 1: Write the proportion equation
   83,965.61 : 115,870.30 = 45,724.40 : x
2. Step 2: Convert to fraction form
   83,965.61/115,870.30 = 45,724.40/x
3. Step 3: Cross multiply
   83,965.61x = 115,870.30 × 45,724.40
4. Step 4: Simplify right side
   83,965.61x = 5,298,099,686.17
5. Step 5: Solve for x
   x = 5,298,099,686.17/83,965.61
6. Step 6: Final answer
   x = 63,098.45