Finding the Fourth Proportional to 124,123, 171,276.78 and 70,390.84

Step by Step Solution

1. Step 1: Write the proportion equation
   124,123 : 171,276.78 = 70,390.84 : x
2. Step 2: Convert to fraction form
   124,123/171,276.78 = 70,390.84/x
3. Step 3: Cross multiply
   124,123x = 171,276.78 × 70,390.84
4. Step 4: Simplify right side
   124,123x = 12,056,316,416.70
5. Step 5: Solve for x
   x = 12,056,316,416.70/124,123
6. Step 6: Final answer
   x = 97,132.01