Finding the Fourth Proportional to 130,231, 179,718.86 and 70,615

Step by Step Solution

1. Step 1: Write the proportion equation
   130,231 : 179,718.86 = 70,615 : x
2. Step 2: Convert to fraction form
   130,231/179,718.86 = 70,615/x
3. Step 3: Cross multiply
   130,231x = 179,718.86 × 70,615
4. Step 4: Simplify right side
   130,231x = 12,690,847,298.90
5. Step 5: Solve for x
   x = 12,690,847,298.90/130,231
6. Step 6: Final answer
   x = 97,448.74