Finding the Fourth Proportional to 156,823.04, 216,426.45 and 88,840.55

Step by Step Solution

1. Step 1: Write the proportion equation
   156,823.04 : 216,426.45 = 88,840.55 : x
2. Step 2: Convert to fraction form
   156,823.04/216,426.45 = 88,840.55/x
3. Step 3: Cross multiply
   156,823.04x = 216,426.45 × 88,840.55
4. Step 4: Simplify right side
   156,823.04x = 19,227,443,770.42
5. Step 5: Solve for x
   x = 19,227,443,770.42/156,823.04
6. Step 6: Final answer
   x = 122,605.99