Finding the Fourth Proportional to 156,768.89, 216,343.37 and 88,784.17

Step by Step Solution

1. Step 1: Write the proportion equation
   156,768.89 : 216,343.37 = 88,784.17 : x
2. Step 2: Convert to fraction form
   156,768.89/216,343.37 = 88,784.17/x
3. Step 3: Cross multiply
   156,768.89x = 216,343.37 × 88,784.17
4. Step 4: Simplify right side
   156,768.89x = 19,207,866,221.55
5. Step 5: Solve for x
   x = 19,207,866,221.55/156,768.89
6. Step 6: Final answer
   x = 122,523.46