Finding the Fourth Proportional to 71,088.31, 106,632.16 and 28,959.00

Step by Step Solution

1. Step 1: Write the proportion equation
   71,088.31 : 106,632.16 = 28,959.00 : x
2. Step 2: Convert to fraction form
   71,088.31/106,632.16 = 28,959.00/x
3. Step 3: Cross multiply
   71,088.31x = 106,632.16 × 28,959.00
4. Step 4: Simplify right side
   71,088.31x = 3,087,960,357.77
5. Step 5: Solve for x
   x = 3,087,960,357.77/71,088.31
6. Step 6: Final answer
   x = 43,438.37