Finding the Fourth Proportional to 115,216,153.29, 172,841,419.76 and 42,427,340.37

Step by Step Solution

1. Step 1: Write the proportion equation
   115,216,153.29 : 172,841,419.76 = 42,427,340.37 : x
2. Step 2: Convert to fraction form
   115,216,153.29/172,841,419.76 = 42,427,340.37/x
3. Step 3: Cross multiply
   115,216,153.29x = 172,841,419.76 × 42,427,340.37
4. Step 4: Simplify right side
   115,216,153.29x = 7,333,201,745,979,426
5. Step 5: Solve for x
   x = 7,333,201,745,979,426/115,216,153.29
6. Step 6: Final answer
   x = 63,647,340.56