Finding the Fourth Proportional to 123,507.01, 170,373.93 and 75,123.74

Step by Step Solution

1. Step 1: Write the proportion equation
   123,507.01 : 170,373.93 = 75,123.74 : x
2. Step 2: Convert to fraction form
   123,507.01/170,373.93 = 75,123.74/x
3. Step 3: Cross multiply
   123,507.01x = 170,373.93 × 75,123.74
4. Step 4: Simplify right side
   123,507.01x = 12,799,126,820.10
5. Step 5: Solve for x
   x = 12,799,126,820.10/123,507.01
6. Step 6: Final answer
   x = 103,630.77