Finding the Fourth Proportional to 82,988.64, 124,419.15 and 42,964.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,988.64 : 124,419.15 = 42,964.72 : x
2. Step 2: Convert to fraction form
   82,988.64/124,419.15 = 42,964.72/x
3. Step 3: Cross multiply
   82,988.64x = 124,419.15 × 42,964.72
4. Step 4: Simplify right side
   82,988.64x = 5,345,633,374.00
5. Step 5: Solve for x
   x = 5,345,633,374.00/82,988.64
6. Step 6: Final answer
   x = 64,414.04