Finding the Fourth Proportional to 101,139.69, 139,568.04 and 58,088.90

Step by Step Solution

1. Step 1: Write the proportion equation
   101,139.69 : 139,568.04 = 58,088.90 : x
2. Step 2: Convert to fraction form
   101,139.69/139,568.04 = 58,088.90/x
3. Step 3: Cross multiply
   101,139.69x = 139,568.04 × 58,088.90
4. Step 4: Simplify right side
   101,139.69x = 8,107,352,930.47
5. Step 5: Solve for x
   x = 8,107,352,930.47/101,139.69
6. Step 6: Final answer
   x = 80,159.96