Finding the Fourth Proportional to 103,038.09, 142,209.39 and 70,745.91

Step by Step Solution

1. Step 1: Write the proportion equation
   103,038.09 : 142,209.39 = 70,745.91 : x
2. Step 2: Convert to fraction form
   103,038.09/142,209.39 = 70,745.91/x
3. Step 3: Cross multiply
   103,038.09x = 142,209.39 × 70,745.91
4. Step 4: Simplify right side
   103,038.09x = 10,060,732,040.16
5. Step 5: Solve for x
   x = 10,060,732,040.16/103,038.09
6. Step 6: Final answer
   x = 97,640.90