Finding the Fourth Proportional to 156,142.82, 215,477.22 and 84,522.62

Step by Step Solution

1. Step 1: Write the proportion equation
   156,142.82 : 215,477.22 = 84,522.62 : x
2. Step 2: Convert to fraction form
   156,142.82/215,477.22 = 84,522.62/x
3. Step 3: Cross multiply
   156,142.82x = 215,477.22 × 84,522.62
4. Step 4: Simplify right side
   156,142.82x = 18,212,699,184.72
5. Step 5: Solve for x
   x = 18,212,699,184.72/156,142.82
6. Step 6: Final answer
   x = 116,641.29