Finding the Fourth Proportional to 101,139.10, 141,802.10 and 101,139.10

Step by Step Solution

1. Step 1: Write the proportion equation
   101,139.10 : 141,802.10 = 101,139.10 : x
2. Step 2: Convert to fraction form
   101,139.10/141,802.10 = 101,139.10/x
3. Step 3: Cross multiply
   101,139.10x = 141,802.10 × 101,139.10
4. Step 4: Simplify right side
   101,139.10x = 14,341,736,772.11
5. Step 5: Solve for x
   x = 14,341,736,772.11/101,139.10
6. Step 6: Final answer
   x = 141,802.10