Finding the Fourth Proportional to 156,153.89, 215,492.32 and 84,533.86

Step by Step Solution

1. Step 1: Write the proportion equation
   156,153.89 : 215,492.32 = 84,533.86 : x
2. Step 2: Convert to fraction form
   156,153.89/215,492.32 = 84,533.86/x
3. Step 3: Cross multiply
   156,153.89x = 215,492.32 × 84,533.86
4. Step 4: Simplify right side
   156,153.89x = 18,216,397,176.89
5. Step 5: Solve for x
   x = 18,216,397,176.89/156,153.89
6. Step 6: Final answer
   x = 116,656.70