Finding the Fourth Proportional to 113,406.52, 156,500.81 and 70,370

Step by Step Solution

1. Step 1: Write the proportion equation
   113,406.52 : 156,500.81 = 70,370 : x
2. Step 2: Convert to fraction form
   113,406.52/156,500.81 = 70,370/x
3. Step 3: Cross multiply
   113,406.52x = 156,500.81 × 70,370
4. Step 4: Simplify right side
   113,406.52x = 11,012,961,999.70
5. Step 5: Solve for x
   x = 11,012,961,999.70/113,406.52
6. Step 6: Final answer
   x = 97,110.49