Finding the Fourth Proportional to 106,889.72, 147,443.54 and 70,591.50

Step by Step Solution

1. Step 1: Write the proportion equation
   106,889.72 : 147,443.54 = 70,591.50 : x
2. Step 2: Convert to fraction form
   106,889.72/147,443.54 = 70,591.50/x
3. Step 3: Cross multiply
   106,889.72x = 147,443.54 × 70,591.50
4. Step 4: Simplify right side
   106,889.72x = 10,408,260,653.91
5. Step 5: Solve for x
   x = 10,408,260,653.91/106,889.72
6. Step 6: Final answer
   x = 97,373.82