Finding the Fourth Proportional to 126,070.71, 173,978.33 and 72,354.35

Step by Step Solution

1. Step 1: Write the proportion equation
   126,070.71 : 173,978.33 = 72,354.35 : x
2. Step 2: Convert to fraction form
   126,070.71/173,978.33 = 72,354.35/x
3. Step 3: Cross multiply
   126,070.71x = 173,978.33 × 72,354.35
4. Step 4: Simplify right side
   126,070.71x = 12,588,087,749.57
5. Step 5: Solve for x
   x = 12,588,087,749.57/126,070.71
6. Step 6: Final answer
   x = 99,849.42