Finding the Fourth Proportional to 113,200.74, 156,217.77 and 70,784.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,200.74 : 156,217.77 = 70,784.10 : x
2. Step 2: Convert to fraction form
   113,200.74/156,217.77 = 70,784.10/x
3. Step 3: Cross multiply
   113,200.74x = 156,217.77 × 70,784.10
4. Step 4: Simplify right side
   113,200.74x = 11,057,734,253.46
5. Step 5: Solve for x
   x = 11,057,734,253.46/113,200.74
6. Step 6: Final answer
   x = 97,682.53