Finding the Fourth Proportional to 156,155.45, 215,494.59 and 84,535.47

Step by Step Solution

1. Step 1: Write the proportion equation
   156,155.45 : 215,494.59 = 84,535.47 : x
2. Step 2: Convert to fraction form
   156,155.45/215,494.59 = 84,535.47/x
3. Step 3: Cross multiply
   156,155.45x = 215,494.59 × 84,535.47
4. Step 4: Simplify right side
   156,155.45x = 18,216,936,448.11
5. Step 5: Solve for x
   x = 18,216,936,448.11/156,155.45
6. Step 6: Final answer
   x = 116,658.99