Finding the Fourth Proportional to 83,320,908.72, 114,957,981.72 and 53,905,661.52

Step by Step Solution

1. Step 1: Write the proportion equation
   83,320,908.72 : 114,957,981.72 = 53,905,661.52 : x
2. Step 2: Convert to fraction form
   83,320,908.72/114,957,981.72 = 53,905,661.52/x
3. Step 3: Cross multiply
   83,320,908.72x = 114,957,981.72 × 53,905,661.52
4. Step 4: Simplify right side
   83,320,908.72x = 6,196,886,051,620,668
5. Step 5: Solve for x
   x = 6,196,886,051,620,668/83,320,908.72
6. Step 6: Final answer
   x = 74,373,721.40