Finding the Fourth Proportional to 151,019.55, 208,407.76 and 83,040.91

Step by Step Solution

1. Step 1: Write the proportion equation
   151,019.55 : 208,407.76 = 83,040.91 : x
2. Step 2: Convert to fraction form
   151,019.55/208,407.76 = 83,040.91/x
3. Step 3: Cross multiply
   151,019.55x = 208,407.76 × 83,040.91
4. Step 4: Simplify right side
   151,019.55x = 17,306,369,312.84
5. Step 5: Solve for x
   x = 17,306,369,312.84/151,019.55
6. Step 6: Final answer
   x = 114,596.88