Finding the Fourth Proportional to 129,111.26, 178,177.86 and 71,753.00

Step by Step Solution

1. Step 1: Write the proportion equation
   129,111.26 : 178,177.86 = 71,753.00 : x
2. Step 2: Convert to fraction form
   129,111.26/178,177.86 = 71,753.00/x
3. Step 3: Cross multiply
   129,111.26x = 178,177.86 × 71,753.00
4. Step 4: Simplify right side
   129,111.26x = 12,784,795,097.69
5. Step 5: Solve for x
   x = 12,784,795,097.69/129,111.26
6. Step 6: Final answer
   x = 99,021.54