Finding the Fourth Proportional to 144,826,802.10, 217,492,145.55 and 76,802,354.10

Step by Step Solution

1. Step 1: Write the proportion equation
   144,826,802.10 : 217,492,145.55 = 76,802,354.10 : x
2. Step 2: Convert to fraction form
   144,826,802.10/217,492,145.55 = 76,802,354.10/x
3. Step 3: Cross multiply
   144,826,802.10x = 217,492,145.55 × 76,802,354.10
4. Step 4: Simplify right side
   144,826,802.10x = 16,703,908,776,499,838
5. Step 5: Solve for x
   x = 16,703,908,776,499,838/144,826,802.10
6. Step 6: Final answer
   x = 115,337,137.42