Finding the Fourth Proportional to 116,960,042.72, 175,540,841.04 and 81,083,444.96

Step by Step Solution

1. Step 1: Write the proportion equation
   116,960,042.72 : 175,540,841.04 = 81,083,444.96 : x
2. Step 2: Convert to fraction form
   116,960,042.72/175,540,841.04 = 81,083,444.96/x
3. Step 3: Cross multiply
   116,960,042.72x = 175,540,841.04 × 81,083,444.96
4. Step 4: Simplify right side
   116,960,042.72x = 14,233,456,122,698,948
5. Step 5: Solve for x
   x = 14,233,456,122,698,948/116,960,042.72
6. Step 6: Final answer
   x = 121,695,031.84