Finding the Fourth Proportional to 81,833,956.64, 122,786,876.72 and 42,963,377.12

Step by Step Solution

1. Step 1: Write the proportion equation
   81,833,956.64 : 122,786,876.72 = 42,963,377.12 : x
2. Step 2: Convert to fraction form
   81,833,956.64/122,786,876.72 = 42,963,377.12/x
3. Step 3: Cross multiply
   81,833,956.64x = 122,786,876.72 × 42,963,377.12
4. Step 4: Simplify right side
   81,833,956.64x = 5,275,338,889,908,308
5. Step 5: Solve for x
   x = 5,275,338,889,908,308/81,833,956.64
6. Step 6: Final answer
   x = 64,463,935.35