Finding the Fourth Proportional to 78,967,317.12, 109,002,293.76 and 54,269,262

Step by Step Solution

1. Step 1: Write the proportion equation
   78,967,317.12 : 109,002,293.76 = 54,269,262 : x
2. Step 2: Convert to fraction form
   78,967,317.12/109,002,293.76 = 54,269,262/x
3. Step 3: Cross multiply
   78,967,317.12x = 109,002,293.76 × 54,269,262
4. Step 4: Simplify right side
   78,967,317.12x = 5,915,474,038,662,405
5. Step 5: Solve for x
   x = 5,915,474,038,662,405/78,967,317.12
6. Step 6: Final answer
   x = 74,910,409.20