Finding the Fourth Proportional to 72,069,287.49, 108,276,391.31 and 46,212,247.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,069,287.49 : 108,276,391.31 = 46,212,247.17 : x
2. Step 2: Convert to fraction form
   72,069,287.49/108,276,391.31 = 46,212,247.17/x
3. Step 3: Cross multiply
   72,069,287.49x = 108,276,391.31 × 46,212,247.17
4. Step 4: Simplify right side
   72,069,287.49x = 5,003,695,357,662,299
5. Step 5: Solve for x
   x = 5,003,695,357,662,299/72,069,287.49
6. Step 6: Final answer
   x = 69,428,955.55