Finding the Fourth Proportional to 64,116,296,787.38, 88,443,728,647.69 and 39,988,429,456.70

Step by Step Solution

1. Step 1: Write the proportion equation
   64,116,296,787.38 : 88,443,728,647.69 = 39,988,429,456.70 : x
2. Step 2: Convert to fraction form
   64,116,296,787.38/88,443,728,647.69 = 39,988,429,456.70/x
3. Step 3: Cross multiply
   64,116,296,787.38x = 88,443,728,647.69 × 39,988,429,456.70
4. Step 4: Simplify right side
   64,116,296,787.38x = 3,536,725,803,915,668,357,120
5. Step 5: Solve for x
   x = 3,536,725,803,915,668,357,120/64,116,296,787.38
6. Step 6: Final answer
   x = 55,161,105,383.92